Jump to content

Fotini Markopoulou-Kalamara: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous edit
Content deleted Content added
VisualWikitext
AnomieBOT (talk | contribs)
Bots
6,421,208 edits
Rescuing orphaned refs ("doppel" from rev 930602906)
m link phase transition
 
(33 intermediate revisions by 23 users not shown)
Line 1: Line 1:
{{short description|Greek physicist (born 1971)}}
{{More footnotes|date=November 2012}}
{{Infobox scientist
{{Infobox scientist
|name = Fotini Markopoulou-Kalamara
| name = Fotini Markopoulou-Kalamara
|image = -rpTEN - Tag 3 (26812422675).jpg
| image = -rpTEN - Tag 3 (26812422675).jpg
|birth_date = {{birth date and age|1971|4|3}}
| birth_date = {{birth date and age|1971|4|3}}
|birth_place = [[Athens]], [[Greece]]
| birth_place = Athens, Greece
|death_date =
| death_date =
|death_place =
| death_place =
⚫
| fields = [[Theoretical physics]]<br>[[Design engineer]]ing<br>[[Technology]]
|nationality = Greek
⚫
| workplaces = [[Pennsylvania State University]]<br>[[Imperial College London]]<br>[[Max Planck Institute for Gravitational Physics]]<br>[[Santa Fe Institute]]<br>[[Perimeter Institute for Theoretical Physics]]<ref name="rca"/><ref name="nautil.us"/>
⚫
|fields = [[Theoretical physics]]<br>[[Design Engineering]]<br>[[Technology]]
|workplaces = [[Pennsylvania State University]]<br>[[Imperial College London]]<br>[[Max Planck Institute for Gravitational Physics]]<br>[[Santa Fe Institute]]<br>[[Perimeter Institute for Theoretical Physics]]<ref name="rca"/><ref name="nautil.us"/>
| alma_mater = [[Queen Mary University of London]]<br>[[Imperial College London]]<br>[[Royal College of Art]]<ref name="rca"/><ref name="nautil.us"/>
⚫
| doctoral_advisor =
⚫
|alma_mater = [[Queen Mary University of London]]<br>[[Imperial College London]]<br>[[Royal College of Art]]<ref name="rca"/><ref name="nautil.us"/>
⚫
| academic_advisors = [[Christopher Isham]]
⚫
|doctoral_advisor =
⚫
| doctoral_students =
⚫
|academic_advisors = [[Christopher Isham]]
| notable_students =
⚫
|doctoral_students =
|notable_students =
| known_for =
|known_for =
| awards =
⚫
| religion =
|influences = [[Christopher Isham]]<br>[[Roger Penrose]]
|influenced =
| signature = <!--(filename only)-->
|awards =
| footnotes =
⚫
|religion =
|signature = <!--(filename only)-->
|footnotes =
}}
}}
'''Fotini G. Markopoulou-Kalamara''' ({{lang-el|Φωτεινή Μαρκοπούλου-Καλαμαρά}}; born April 3, 1971) is a [[Greece|Greek]] [[theoretical physicist]] interested in [[quantum gravity]], foundational [[mathematics]] and [[quantum mechanics]] and a design engineer working on [[embodied cognition]] technologies. Markopoulou is co-founder and CEO of doppel.<ref name="Empathic Technologies">{{cite web|url=http://www.empathictechnologies.com|title=doppel}}</ref> She was a founding faculty member at [[Perimeter Institute for Theoretical Physics]] and was an adjunct professor at the [[University of Waterloo]].
'''Fotini G. Markopoulou-Kalamara''' ({{lang-el|Φωτεινή Μαρκοπούλου-Καλαμαρά}}; born April 3, 1971) is a Greek [[theoretical physicist]] interested in [[quantum gravity]], foundational [[mathematics]], [[quantum mechanics]] and a design engineer working on [[embodied cognition]] technologies. Markopoulou is co-founder and CEO of Empathic Technologies.<ref name="Empathic Technologies">{{cite web|url=http://www.empathictechnologies.com/|title=Empathic Technologies|last=|first=|date=|website=|archive-url=https://web.archive.org/web/20210803083359/https://www.empathictechnologies.com/|archive-date=2021-08-03|access-date=|url-status=dead}}</ref> She was a founding faculty member at [[Perimeter Institute for Theoretical Physics]] and was an adjunct professor at the [[University of Waterloo]].


==Quantum Gravity==
==Quantum gravity==
Markopoulou received her [[Ph.D.]] from [[Imperial College London]] in 1998 and held postdoctoral positions at the [[Max Planck Institute for Gravitational Physics]], Imperial College London, and [[Pennsylvania State University]]. She shared First Prize in the Young Researchers competition at the Ultimate Reality Symposium in [[Princeton, New Jersey|Princeton]], [[New Jersey]].<ref>{{cite web|url=http://www.metanexus.net/archive/ultimate_reality/032102.htm|title= Winners of the Young Researchers Competition in Physics Announced|accessdate=2008-04-24|date=2002-03-21|work=Science & Ultimate Reality|publisher=[[Metanexus Institute]]}}</ref>
Markopoulou received her PhD from [[Imperial College London]] in 1998 and held postdoctoral positions at the [[Max Planck Institute for Gravitational Physics]], Imperial College London, and [[Pennsylvania State University]]. She shared First Prize in the Young Researchers competition at the Ultimate Reality Symposium in [[Princeton, New Jersey|Princeton]], [[New Jersey]].<ref>{{cite web|url=http://www.metanexus.net/archive/ultimate_reality/032102.htm|title= Winners of the Young Researchers Competition in Physics Announced|accessdate=2008-04-24|date=2002-03-21|work=Science & Ultimate Reality|publisher=[[Metanexus Institute]]}}</ref>


She has been influenced by researchers such as [[Christopher Isham]] who call attention to the unstated assumption in most modern physics that physical properties are most naturally calibrated by a real-number continuum. She, and others, attempt to make explicit some of the implicit mathematical assumptions underpinning modern theoretical physics and cosmology.
She has been influenced by researchers such as [[Christopher Isham]] who call attention to the unstated assumption in most modern physics that physical properties are most naturally calibrated by a real-number continuum. She, and others, attempt to make explicit some of the implicit mathematical assumptions underpinning modern theoretical physics and cosmology.{{citation needed|date=February 2022}}


In her interdisciplinary paper "The Internal Description of a Causal Set: What the Universe Looks Like from the Inside", Markopoulou instantiates some abstract terms from mathematical [[category theory]] to develop straightforward models of space-time. It proposes simple quantum models of space-time based on category-theoretic notions of a [[topos]] and its [[subobject classifier]] (which has a [[Heyting algebra]] structure, but not necessarily a [[Boolean algebra (structure)|Boolean algebra]] structure).
In her interdisciplinary paper "The Internal Description of a Causal Set: What the Universe Looks Like from the Inside", Markopoulou instantiates some abstract terms from mathematical [[category theory]] to develop straightforward models of space-time. It proposes simple quantum models of space-time based on category-theoretic notions of a [[topos]] and its [[subobject classifier]] (which has a [[Heyting algebra]] structure, but not necessarily a [[Boolean algebra (structure)|Boolean algebra]] structure).{{citation needed|date=February 2022}}


For example, hard-to-picture category-theoretic [[presheaf (category theory)|"presheaves"]] from topos theory become easy-to-picture "evolving (or varying) sets" in her discussions of [[quantum spacetime]]. The diagrams in Markopoulou's papers (including hand-drawn diagrams in one of the earlier versions of "The Internal Description of a Causal Set") are straightforward presentations of possible models of space-time. They are intended as meaningful and provocative, not just for specialists but also for newcomers.
For example, hard-to-picture category-theoretic [[presheaf (category theory)|"presheaves"]] from topos theory become easy-to-picture "evolving (or varying) sets" in her discussions of [[quantum spacetime]]. The diagrams in Markopoulou's papers (including hand-drawn diagrams in one of the earlier versions of "The Internal Description of a Causal Set") are straightforward presentations of possible models of space-time. They are intended as meaningful and provocative, not just for specialists but also for newcomers.{{citation needed|date=February 2022}}


In May 2006, Markopoulou published a paper with [[Lee Smolin]] that further popularized this [[Causal dynamical triangulation|Causal Dynamical Triangulation]] (CDT) Theory by explaining time slicing of the Ambjorn–Loll CDT model as result of gauge fixing. Their approach relaxed the definition of the Ambjorn–Loll CDT model in 1 + 1 dimensions to allow for a varying lapse.
In May 2006, Markopoulou published a paper with [[Lee Smolin]] that further popularized this [[Causal dynamical triangulation]] (CDT) theory by explaining the time-slicing of the Ambjorn–Loll CDT model as a result of gauge fixing.{{clarify|too technical|date=February 2022}} Their approach relaxed the definition of the Ambjorn–Loll CDT model in 1 + 1 dimensions to allow for a varying lapse.{{citation needed|date=February 2022}}

⚫
After Perimeter's director Neil Turok did not allow her to apply for tenure, Markopoulou left Perimeter in the fall of 2011.<ref name="nautil.us">{{cite web|last1=Davies|first1=Sally|title=This Physics Pioneer Walked Away from It All|url=http://nautil.us/issue/38/noise/this-physics-pioneer-walked-away-from-it-all|website=[[Nautilus (science magazine)]]|accessdate=29 July 2016}}</ref> In a move away from physics in 2012, Markopoulou enrolled and studied on the Innovation Design Engineering double masters (MA+MSc) at [[Imperial College London]] and the [[Royal College of Art]], graduating in 2014.<ref name="rca">{{cite web|title=Fotini Markopoulou - Royal College of Art|url=https://www.rca.ac.uk/students/fotini-markopoulou/|accessdate=22 March 2017}}</ref> Her two graduation projects were a solo project: Cityzen, a digital voting system using values based data analytics, and ''MyTempo'', a group project with Nell Bennett, Andreas Bilicki and Jack Hooper. ''MyTempo'' won the Deutsche Bank Award for Creative Enterprise (Design Category) 2014<ref>[https://www.db.com/unitedkingdom/docs/4326_DBACE_2014_Winners_FINAL_8.pdf An Originator] (PDF) Retrieved 18 June 2015.</ref> and was exhibited at the John Lewis Future Store.<ref>[http://www.rca.ac.uk/news-and-events/news/rca-exhibition-helps-john-lewis-celebrate-150/ Royal College of Art Exhibition Collaboration Helps John Lewis Celebrate Being 150] Royal College of Art Retrieved 18 June 2015.</ref>

⚫
After Graduating Markopoulou and her colleagues founded ''doppel'', a company that researches psycho-physiology, the way in which a person's mind and body affect one-another to create technology that changes how we perceive, feel and behave.<ref>{{cite web |url=http://www.tturquoise.com/our-team-ks/ |title=Archived copy |accessdate=2015-06-18 |url-status=dead |archiveurl=https://web.archive.org/web/20150618174523/http://www.tturquoise.com/our-team-ks/ |archivedate=2015-06-18 }}</ref> ''MyTempo'' was rebranded to become ''doppel'' and in June 2015 was launched on [[Kickstarter]].<ref>{{cite web|url=http://kck.st/1ejqZlU|title=doppel - performance-enhancing wearable technology|website=Kickstarter}}</ref>


==Quantum graphity==
==Quantum graphity==
In 2008, Markopoulou, [[Tomasz Konopka]], [[Mohammad H. Ansari]], and [[Simone Severini]] initiated the study of a new background independent model of evolutionary space called [[Quantum Graphity|quantum graphity]].
In 2008, Markopoulou, Tomasz Konopka, [[Mohammad H. Ansari]], and [[Simone Severini]] initiated the study of a new background independent model of evolutionary space called [[Quantum Graphity|quantum graphity]].


In the quantum graphity model, points in spacetime are represented by nodes on a graph connected by links that can be on or off.<ref>Konopka, Tomasz; Markopoulou, Fotini; Severini, Simone (6 Jan 2008) [https://arxiv.org/abs/0801.0861 "Quantum Graphity: a model of emergent locality"]</ref> This indicates whether or not the two points are directly connected as if they are next to each other in spacetime. When they are on the links have additional state variables which are used to define the random dynamics of the graph under the influence of quantum fluctuations and temperature. At high temperature the graph is in Phase I where all the points are randomly connected to each other and no concept of spacetime as we know it exists. As the temperature drops and the graph cools, it is conjectured to undergo a phase transition to a Phase II where spacetime forms. It will then look like a spacetime manifold on large scales with only near-neighbour points being connected in the graph.
In the quantum graphity model, points in spacetime are represented by nodes on a graph connected by links that can be on or off.<ref>Konopka, Tomasz; Markopoulou, Fotini; Severini, Simone (6 Jan 2008) [https://arxiv.org/abs/0801.0861 "Quantum Graphite: a model of emergent locality"]</ref> This indicates whether or not the two points are directly connected as if they are next to each other in spacetime. When they are on the links have additional state variables which are used to define the random dynamics of the graph under the influence of quantum fluctuations and temperature. At high temperature the graph is in Phase I where all the points are randomly connected to each other and no concept of spacetime as we know it exists. As the temperature drops and the graph cools, it is conjectured to undergo a [[phase transition]] to Phase II where spacetime forms. It will then look like a spacetime manifold on large scales with only near-neighbor points being connected in the graph.


The hypothesis of quantum graphity is that this geometrogenesis models the condensation of spacetime in [[the big bang]]. A second model, related to ideas around quantum graphity, has been published.<ref>A. Hamma, F. Markopoulou, S. Loyd, F. Caravelli, S. Severini, K. Markstrom (27 Nov 2009) "A quantum Bose-Hubbard model with evolving graph as toy model for emergent spacetime" https://arxiv.org/abs/0911.5075</ref>
The hypothesis of quantum graphity is that this geometrogenesis models the condensation of spacetime in [[the big bang]]. A second model, related to ideas around quantum graphity, has been published.<ref>A. Hamma, F. Markopoulou, S. Loyd, F. Caravelli, S. Severini, K. Markstrom (27 Nov 2009) "A quantum Bose-Hubbard model with the evolving graph as a toy model for emergent spacetime" https://arxiv.org/abs/0911.5075</ref>

Markopoulou is one of the quantum gravity researchers that uses the quantum computation framework to formulate new quantum theories of gravity. In her paper ''[[arxiv:1201.3398|The Computing Spacetime]]''<ref>{{Cite book|last=Markopoulou|first=Fotini|title=How the World Computes |chapter=The Computing Spacetime |date=2012|editor-last=Cooper|editor-first=S. Barry|editor2-last=Dawar|editor2-first=Anuj|editor3-last=Löwe|editor3-first=Benedikt|chapter-url=https://link.springer.com/chapter/10.1007/978-3-642-30870-3_48|series=Lecture Notes in Computer Science|volume=7318|language=en|location=Berlin, Heidelberg|publisher=Springer|pages=472–484|doi=10.1007/978-3-642-30870-3_48|isbn=978-3-642-30870-3}}</ref> she has given an easily accessible overview of these ideas.


==Innovation Design Engineering==
==Innovation Design Engineering==
⚫
After Perimeter's director [[Neil Turok]] did not allow her to apply for tenure, Markopoulou left Perimeter in the fall of 2011.<ref name="nautil.us">{{cite web|url=https://nautil.us/this-physics-pioneer-walked-away-from-it-all-236025|title=This Physics Pioneer Walked Away from It All|last1=Davies|first1=Sally|website=[[Nautilus (science magazine)]]|accessdate=29 July 2016}}</ref> In a move away from physics in 2012, Markopoulou enrolled and studied on the Innovation Design Engineering double masters (MA+MSc) at [[Imperial College London]] and the [[Royal College of Art]], graduating in 2014.<ref name="rca">{{cite web|url=https://www.rca.ac.uk/students/fotini-markopoulou/|title=Fotini Markopoulou - Royal College of Art|accessdate=22 March 2017}}</ref> Her two graduation projects were a solo project: Cityzen, a digital voting system using values-based data analytics, and ''MyTempo'', a group project with Nell Bennett, Andreas Bilicki and Jack Hooper. ''MyTempo'' won the [[Deutsche Bank]] Award for Creative Enterprise (Design Category) 2014<ref>[https://www.db.com/unitedkingdom/docs/4326_DBACE_2014_Winners_FINAL_8.pdf An Originator] (PDF) Retrieved 18 June 2015.</ref> and was exhibited at the John Lewis Future Store.<ref>[http://www.rca.ac.uk/news-and-events/news/rca-exhibition-helps-john-lewis-celebrate-150/ Royal College of Art Exhibition Collaboration Helps John Lewis Celebrate Being 150] Royal College of Art Retrieved 18 June 2015.</ref>
⚫
In 2014, Markopoulou received a double [[M.Sc.]] from [[The Royal College of Art]] and [[Imperial College London]] in Innovation Design Engineering (IDE), a leading-edge, interdisciplinary course that focuses on the exploration and development of impactful innovation through critical observation, disruptive design thinking, experimentation, exploration of emergent technologies, advanced engineering and enterprise activities.<ref>{{cite web|url=https://www.rca.ac.uk/schools/school-of-design/innovation-design-engineering/|title= Innovation Design Engineering Programme, Royal College of Art}}</ref> Her Masters thesis was a digital voting system that makes the rich landscape of our voices tangible, reducing the distractions of democracy and the effort required by people and government to participate.<ref>{{cite web|url=https://www.rca.ac.uk/students/fotini-markopoulou/|title= Fotini Markopoulou, Royal College of Art.}}</ref>


⚫
In 2014, Markopoulou received a double [[MSc]] from [[The Royal College of Art]] and [[Imperial College London]] in Innovation Design Engineering (IDE), an interdisciplinary course that focuses on the exploration and development of impactful innovation through critical observation, disruptive design thinking, experimentation, exploration of emergent technologies, advanced engineering and enterprise activities.<ref>{{cite web|url=https://www.rca.ac.uk/schools/school-of-design/innovation-design-engineering/|title= Innovation Design Engineering Programme, Royal College of Art}}</ref> Her Masters thesis was a digital voting system that makes the rich landscape of our voices tangible, reducing the distractions of democracy and the effort required by people and government to participate.<ref>{{cite web|url=https://www.rca.ac.uk/students/fotini-markopoulou/|title= Fotini Markopoulou, Royal College of Art.}}</ref>
==doppel==
⚫
Markopoulou is co-founder and CEO of doppel,<ref name="doppel">{{cite web|url=http://www.feeldoppel.com|title=doppel}}</ref> a tech company that uses research in [[psychophysiology]] to create technology that changes how the user perceives, feels and behaves. doppel won the Best Female-Led Investment 2018 Award from the UK Business Angels Association.<ref>{{cite web|url=https://cambridgeangels.com/news/6/2018-doppel-wins-best-female-led-investment-at-the-ukbaa-angel-investment-awards|title=doppel wins Best Female Led Investment at the UKBAA angel investment awards.}}</ref>


⚫
After graduating Markopoulou and her colleagues founded ''doppel'', a company that researches psycho-physiology, the way in which a person's mind and body affect one-another, to create technology that changes how people perceive, feel and behave.<ref>{{cite web|url=http://www.tturquoise.com/our-team-ks/|title=Team Turquoise — doppel|url-status=dead|archiveurl=https://web.archive.org/web/20150618174523/http://www.tturquoise.com/our-team-ks/|archivedate=2015-06-18|accessdate=2015-06-18}}</ref> ''MyTempo'' was rebranded to become ''doppel'' and in June 2015 was launched on [[Kickstarter]].<ref>{{cite web|url=http://kck.st/1ejqZlU|title=doppel - performance-enhancing wearable technology|website=Kickstarter}}</ref>
The company’s first product, also called doppel, is a wristband that helps the wearer to stay calm and focused. In July 2015, doppel had a successful [[Kickstarter]] campaign.<ref>{{cite web|url=http://www.kickstarter.com/projects/1799505246/doppel-a-new-breed-of-wearable-technology-to-set-y|title=doppel - Feel calm and focused, naturally|publisher=Kickstarter}}</ref>


==Empathic Technologies==
doppel is one of a new wave of wearables that go beyond measuring and serving users’ data, and instead actively changes how the wearer feels.<ref>{{cite web|url=https://www.wired.co.uk/article/doppel-wristband|title=The Doppel wristband can literally change your mood|publisher=Wired}}</ref>

<ref>{{cite web|url=https://www.forbes.com/sites/parmyolson/2016/08/31/meet-the-pulsing-wristband-that-could-replace-caffeine/#412e7d982beb|title=Meet The Pulsing Wristband That Could Replace Caffeine|publisher=Forbes}}</ref> doppel’s efficacy was tested in a controlled Psychomotor Vigilance Task (reaction time test) that measures sustained attention, administered by psychologists at [[RHUL]]. Peer-reviewed trial results published in Scientific Reports found that doppel had a significant calming effect on physiological arousal and subjective experience during a socially stressful situation.
Markopoulou is co-founder and CEO of Empathic Technologies,<ref name="doppel">{{cite web|url=http://www.feeldoppel.com|title=doppel}}</ref><ref>{{Cite web|url=https://aeon.co/essays/how-social-and-physical-technologies-collaborate-to-create|title=How social and physical technologies collaborate to create – Doyne Farmer, Fotini Markopoulou, Eric Beinhocker & Steen Rasmussen {{!}} Aeon Essays|website=Aeon|language=en|access-date=2020-02-12}}</ref>
<ref>Ruben T. Azevedo, Nell Bennett, Andreas Bilicki, Jack Hooper, Fotini Markopoulou & Manos Tsakiris {{cite web|url=https://www.nature.com/articles/s41598-017-02274-2|title=The calming effect of a new wearable device during the anticipation of public speech|publisher=Scientific Reports volume 7, Article number: 2285 (2017) }}</ref>
⚫
a tech company that uses research in [[psychophysiology]] to create technology that changes how the user perceives, feels and behaves. Empathic Technologies won the Best Female-Led Investment 2018 Award from the UK Business Angels Association.<ref>{{cite web|url=https://cambridgeangels.com/news/6/2018-doppel-wins-best-female-led-investment-at-the-ukbaa-angel-investment-awards|title=doppel wins Best Female Led Investment at the UKBAA angel investment awards.}}</ref>

The company’s first product, [https://feeldoppel.com/ doppel] {{Webarchive|url=https://web.archive.org/web/20210803083353/https://feeldoppel.com/ |date=2021-08-03 }}, is a wristband that reduces stress.<ref>{{cite web|url=https://www.wired.co.uk/article/doppel-wristband|title=The Doppel wristband can literally change your mood|publisher=Wired}}</ref><ref>{{cite web|url=https://www.forbes.com/sites/parmyolson/2016/08/31/meet-the-pulsing-wristband-that-could-replace-caffeine/#412e7d982beb|title=Meet The Pulsing Wristband That Could Replace Caffeine|work=Forbes}}</ref> Peer-reviewed trial results found that Doppel had a significant calming effect during a socially stressful situation.<ref>Ruben T. Azevedo, Nell Bennett, Andreas Bilicki, Jack Hooper, Fotini Markopoulou & Manos Tsakiris {{cite web|url=https://www.nature.com/articles/s41598-017-02274-2|title=The calming effect of a new wearable device during the anticipation of public speech|publisher=Scientific Reports volume 7, Article number: 2285 (2017)}}</ref>


==Personal life==
==Personal life==
⚫
Markopoulou lives in Oxford, England, with her husband [[J. Doyne Farmer|Doyne Farmer]] and their son Maris.<ref name="nautil.us"/> Markopoulou has two previous marriages to [[Lee Smolin]] and [[Olaf Dreyer]].<ref name="nautil.us"/>


==See also==
⚫
She lives in Oxford, England, with her husband [[J. Doyne Farmer|Doyne Farmer]] and their son Maris.<ref name="nautil.us"/> Markopoulou has two previous marriages to [[Lee Smolin]] and [[Olaf Dreyer]].<ref name="nautil.us"/>
* [[List of University of Waterloo people]]


==References==
==References==
Line 68: Line 67:
==External links==
==External links==
* Fotini Markopoulou, ''[https://arxiv.org/abs/gr-qc/9811053 The Internal Description of a Causal Set: What the Universe Looks Like from the Inside]'' (1999)
* Fotini Markopoulou, ''[https://arxiv.org/abs/gr-qc/9811053 The Internal Description of a Causal Set: What the Universe Looks Like from the Inside]'' (1999)
* [http://cgpg.gravity.psu.edu/online/Html/Seminars/Fall1998/Markopoulou/ Related seminar] (1998)
* [http://cgpg.gravity.psu.edu/online/Html/Seminars/Fall1998/Markopoulou/ Related seminar] {{Webarchive|url=https://web.archive.org/web/20031107103615/http://cgpg.gravity.psu.edu/online/Html/Seminars/Fall1998/Markopoulou/ |date=2003-11-07 }} (1998)
* {{cite news|first=Amanda|last=Gefter|title=Throwing Einstein for a Loop|url=http://www.scientificamerican.com/article.cfm?id=throwing-einstein-for-a-l|journal=[[Scientific American]]|date=11 November 2002|accessdate=10 November 2012}}
* {{cite news|first=Amanda|last=Gefter|title=Throwing Einstein for a Loop|url=http://www.scientificamerican.com/article.cfm?id=throwing-einstein-for-a-l|journal=[[Scientific American]]|date=11 November 2002|accessdate=10 November 2012}}
*[https://web.archive.org/web/20091027215524/http://www.q2cfestival.com/play.php?lecture_id=7739 Creating Spacetime] - a lecture presented by Fotini Markopoulou at the Quantum to Cosmos festival.
*[https://web.archive.org/web/20091027215524/http://www.q2cfestival.com/play.php?lecture_id=7739 Creating Spacetime] - a lecture presented by Fotini Markopoulou at the Quantum to Cosmos festival.
*Davies, Sally (29 July 2019) [https://nautil.us/this-physics-pioneer-walked-away-from-it-all-236025 "This Physics Pioneer Walked Away from It All"] {{Webarchive|url=https://web.archive.org/web/20210729205359/https://nautil.us/issue/38/noise/this-physics-pioneer-walked-away-from-it-all |date=2021-07-29 }}. Nautilus.
*Farmer, D, Markopoulou, F, Beinhocker, E and Rasmussen, S (11 February 2020) [https://aeon.co/essays/how-social-and-physical-technologies-collaborate-to-create "Collaborators in Creation"], Aeon.


{{authority control}}
{{authority control}}

{{DEFAULTSORT:Markopoulou-Kalamara, Fotini}}
{{DEFAULTSORT:Markopoulou-Kalamara, Fotini}}
[[Category:1971 births]]
[[Category:1971 births]]
[[Category:Living people]]
[[Category:Living people]]
[[Category:Greek women physicists]]
[[Category:Greek women physicists]]
[[Category:Greek physicists]]
[[Category:21st-century Greek physicists]]
[[Category:Greek academics]]
[[Category:Greek academics]]
[[Category:Alumni of Imperial College London]]
[[Category:Alumni of Imperial College London]]
Line 83: Line 85:
[[Category:Alumni of the Royal College of Art]]
[[Category:Alumni of the Royal College of Art]]
[[Category:Academics of Imperial College London]]
[[Category:Academics of Imperial College London]]
[[Category:Scientists from Athens]]

Latest revision as of 18:19, 27 April 2024

Fotini Markopoulou-Kalamara
Born (1971-04-03) April 3, 1971 (age 53)
Athens, Greece
Alma materQueen Mary University of London
Imperial College London
Royal College of Art[1][2]
Scientific career
FieldsTheoretical physics
Design engineering
Technology
InstitutionsPennsylvania State University
Imperial College London
Max Planck Institute for Gravitational Physics
Santa Fe Institute
Perimeter Institute for Theoretical Physics[1][2]
Academic advisorsChristopher Isham

Fotini G. Markopoulou-Kalamara (Greek: Φωτεινή Μαρκοπούλου-Καλαμαρά; born April 3, 1971) is a Greek theoretical physicist interested in quantum gravity, foundational mathematics, quantum mechanics and a design engineer working on embodied cognition technologies. Markopoulou is co-founder and CEO of Empathic Technologies.[3] She was a founding faculty member at Perimeter Institute for Theoretical Physics and was an adjunct professor at the University of Waterloo.

Quantum gravity

[edit]

Markopoulou received her PhD from Imperial College London in 1998 and held postdoctoral positions at the Max Planck Institute for Gravitational Physics, Imperial College London, and Pennsylvania State University. She shared First Prize in the Young Researchers competition at the Ultimate Reality Symposium in Princeton, New Jersey.[4]

She has been influenced by researchers such as Christopher Isham who call attention to the unstated assumption in most modern physics that physical properties are most naturally calibrated by a real-number continuum. She, and others, attempt to make explicit some of the implicit mathematical assumptions underpinning modern theoretical physics and cosmology.[citation needed]

In her interdisciplinary paper "The Internal Description of a Causal Set: What the Universe Looks Like from the Inside", Markopoulou instantiates some abstract terms from mathematical category theory to develop straightforward models of space-time. It proposes simple quantum models of space-time based on category-theoretic notions of a topos and its subobject classifier (which has a Heyting algebra structure, but not necessarily a Boolean algebra structure).[citation needed]

For example, hard-to-picture category-theoretic "presheaves" from topos theory become easy-to-picture "evolving (or varying) sets" in her discussions of quantum spacetime. The diagrams in Markopoulou's papers (including hand-drawn diagrams in one of the earlier versions of "The Internal Description of a Causal Set") are straightforward presentations of possible models of space-time. They are intended as meaningful and provocative, not just for specialists but also for newcomers.[citation needed]

In May 2006, Markopoulou published a paper with Lee Smolin that further popularized this Causal dynamical triangulation (CDT) theory by explaining the time-slicing of the Ambjorn–Loll CDT model as a result of gauge fixing.[clarification needed] Their approach relaxed the definition of the Ambjorn–Loll CDT model in 1 + 1 dimensions to allow for a varying lapse.[citation needed]

Quantum graphity

[edit]

In 2008, Markopoulou, Tomasz Konopka, Mohammad H. Ansari, and Simone Severini initiated the study of a new background independent model of evolutionary space called quantum graphity.

In the quantum graphity model, points in spacetime are represented by nodes on a graph connected by links that can be on or off.[5] This indicates whether or not the two points are directly connected as if they are next to each other in spacetime. When they are on the links have additional state variables which are used to define the random dynamics of the graph under the influence of quantum fluctuations and temperature. At high temperature the graph is in Phase I where all the points are randomly connected to each other and no concept of spacetime as we know it exists. As the temperature drops and the graph cools, it is conjectured to undergo a phase transition to Phase II where spacetime forms. It will then look like a spacetime manifold on large scales with only near-neighbor points being connected in the graph.

The hypothesis of quantum graphity is that this geometrogenesis models the condensation of spacetime in the big bang. A second model, related to ideas around quantum graphity, has been published.[6]

Markopoulou is one of the quantum gravity researchers that uses the quantum computation framework to formulate new quantum theories of gravity. In her paper The Computing Spacetime[7] she has given an easily accessible overview of these ideas.

Innovation Design Engineering

[edit]

After Perimeter's director Neil Turok did not allow her to apply for tenure, Markopoulou left Perimeter in the fall of 2011.[2] In a move away from physics in 2012, Markopoulou enrolled and studied on the Innovation Design Engineering double masters (MA+MSc) at Imperial College London and the Royal College of Art, graduating in 2014.[1] Her two graduation projects were a solo project: Cityzen, a digital voting system using values-based data analytics, and MyTempo, a group project with Nell Bennett, Andreas Bilicki and Jack Hooper. MyTempo won the Deutsche Bank Award for Creative Enterprise (Design Category) 2014[8] and was exhibited at the John Lewis Future Store.[9]

In 2014, Markopoulou received a double MSc from The Royal College of Art and Imperial College London in Innovation Design Engineering (IDE), an interdisciplinary course that focuses on the exploration and development of impactful innovation through critical observation, disruptive design thinking, experimentation, exploration of emergent technologies, advanced engineering and enterprise activities.[10] Her Masters thesis was a digital voting system that makes the rich landscape of our voices tangible, reducing the distractions of democracy and the effort required by people and government to participate.[11]

After graduating Markopoulou and her colleagues founded doppel, a company that researches psycho-physiology, the way in which a person's mind and body affect one-another, to create technology that changes how people perceive, feel and behave.[12] MyTempo was rebranded to become doppel and in June 2015 was launched on Kickstarter.[13]

Empathic Technologies

[edit]

Markopoulou is co-founder and CEO of Empathic Technologies,[14][15] a tech company that uses research in psychophysiology to create technology that changes how the user perceives, feels and behaves. Empathic Technologies won the Best Female-Led Investment 2018 Award from the UK Business Angels Association.[16]

The company’s first product, doppel Archived 2021-08-03 at the Wayback Machine, is a wristband that reduces stress.[17][18] Peer-reviewed trial results found that Doppel had a significant calming effect during a socially stressful situation.[19]

Personal life

[edit]

Markopoulou lives in Oxford, England, with her husband Doyne Farmer and their son Maris.[2] Markopoulou has two previous marriages to Lee Smolin and Olaf Dreyer.[2]

See also

[edit]

References

[edit]
  1. ^ a b c "Fotini Markopoulou - Royal College of Art". Retrieved 22 March 2017.
  2. ^ a b c d e Davies, Sally. "This Physics Pioneer Walked Away from It All". Nautilus (science magazine). Retrieved 29 July 2016.
  3. ^ "Empathic Technologies". Archived from the original on 2021-08-03.
  4. ^ "Winners of the Young Researchers Competition in Physics Announced". Science & Ultimate Reality. Metanexus Institute. 2002-03-21. Retrieved 2008-04-24.
  5. ^ Konopka, Tomasz; Markopoulou, Fotini; Severini, Simone (6 Jan 2008) "Quantum Graphite: a model of emergent locality"
  6. ^ A. Hamma, F. Markopoulou, S. Loyd, F. Caravelli, S. Severini, K. Markstrom (27 Nov 2009) "A quantum Bose-Hubbard model with the evolving graph as a toy model for emergent spacetime" https://arxiv.org/abs/0911.5075
  7. ^ Markopoulou, Fotini (2012). "The Computing Spacetime". In Cooper, S. Barry; Dawar, Anuj; Löwe, Benedikt (eds.). How the World Computes. Lecture Notes in Computer Science. Vol. 7318. Berlin, Heidelberg: Springer. pp. 472–484. doi:10.1007/978-3-642-30870-3_48. ISBN 978-3-642-30870-3.
  8. ^ An Originator (PDF) Retrieved 18 June 2015.
  9. ^ Royal College of Art Exhibition Collaboration Helps John Lewis Celebrate Being 150 Royal College of Art Retrieved 18 June 2015.
  10. ^ "Innovation Design Engineering Programme, Royal College of Art".
  11. ^ "Fotini Markopoulou, Royal College of Art".
  12. ^ "Team Turquoise — doppel". Archived from the original on 2015-06-18. Retrieved 2015-06-18.
  13. ^ "doppel - performance-enhancing wearable technology". Kickstarter.
  14. ^ "doppel".
  15. ^ "How social and physical technologies collaborate to create – Doyne Farmer, Fotini Markopoulou, Eric Beinhocker & Steen Rasmussen | Aeon Essays". Aeon. Retrieved 2020-02-12.
  16. ^ "doppel wins Best Female Led Investment at the UKBAA angel investment awards".
  17. ^ "The Doppel wristband can literally change your mood". Wired.
  18. ^ "Meet The Pulsing Wristband That Could Replace Caffeine". Forbes.
  19. ^ Ruben T. Azevedo, Nell Bennett, Andreas Bilicki, Jack Hooper, Fotini Markopoulou & Manos Tsakiris "The calming effect of a new wearable device during the anticipation of public speech". Scientific Reports volume 7, Article number: 2285 (2017).
[edit]
Retrieved from "https://en.wikipedia.org/w/index.php?title=Fotini_Markopoulou-Kalamara&oldid=1221073848"