Claudia De Rham
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Claudia de Rham is a Swiss
theoretical physicist Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain and predict natural phenomena. This is in contrast to experimental physics, which uses experimen ...
working at the interface of gravity, cosmology and particle physics. She is based at
Imperial College London Imperial College London (legally Imperial College of Science, Technology and Medicine) is a public research university in London, United Kingdom. Its history began with Prince Albert, consort of Queen Victoria, who developed his vision for a cu ...
. She was one of the UK finalists in the Physical Sciences and Engineering category of the Blavatnik Award for Young Scientists in 2018 for revitalizing the theory of
massive gravity In theoretical physics, massive gravity is a theory of gravity that modifies general relativity by endowing the graviton with a nonzero mass. In the classical theory, this means that gravitational waves obey a massive wave equation and hence travel ...
, and won the award in 2020.


Early life and education

de Rham was born in
Lausanne , neighboring_municipalities= Bottens, Bretigny-sur-Morrens, Chavannes-près-Renens, Cheseaux-sur-Lausanne, Crissier, Cugy, Écublens, Épalinges, Évian-les-Bains (FR-74), Froideville, Jouxtens-Mézery, Le Mont-sur-Lausanne, Lugrin (FR-74), ...
. She completed her undergraduate studies in France, receiving an engineering degree in physics at the
École Polytechnique École may refer to: * an elementary school in the French educational stages normally followed by secondary education establishments (collège and lycée) * École (river), a tributary of the Seine flowing in région Île-de-France * École, Savoi ...
in Paris in 2000. She received a master's degree in Physics from the
École Polytechnique Fédérale de Lausanne École may refer to: * an elementary school in the French educational stages normally followed by secondary education establishments (collège and lycée) * École (river), a tributary of the Seine flowing in région Île-de-France * École, Savoi ...
(EPFL) in 2001. In 2002, de Rham moved to the UK, achieving a PhD in the Department of Applied Mathematics and Theoretical Physics at the
University of Cambridge , mottoeng = Literal: From here, light and sacred draughts. Non literal: From this place, we gain enlightenment and precious knowledge. , established = , other_name = The Chancellor, Masters and Schola ...
on "
braneworld Brane cosmology refers to several theories in particle physics and cosmology related to string theory, superstring theory and M-theory. Brane and bulk The central idea is that the visible, three-dimensional universe is restricted to a brane i ...
cosmology beyond the low-energy limit". She has trained as a pilot and made it through several stages of the European Space Agency's astronaut selection process.


Research

After her PhD, de Rham moved to Montreal to join the Physics Department at
McGill University McGill University (french: link=no, Université McGill) is an English-language public research university located in Montreal, Quebec, Canada. Founded in 1821 by royal charter granted by King George IV,Frost, Stanley Brice. ''McGill Universit ...
. She moved to
McMaster University McMaster University (McMaster or Mac) is a public research university in Hamilton, Ontario, Canada. The main McMaster campus is on of land near the residential neighbourhoods of Ainslie Wood and Westdale, adjacent to the Royal Botanical Ga ...
and the
Perimeter Institute for Theoretical Physics Perimeter Institute for Theoretical Physics (PI, Perimeter, PITP) is an independent research centre in foundational theoretical physics located in Waterloo, Ontario, Canada. It was founded in 1999. The institute's founding and major benefactor i ...
in 2006, where she worked in a joint postdoctoral position in Cosmology. In 2010 she joined
Geneva University The University of Geneva (French: ''Université de Genève'') is a public research university located in Geneva, Switzerland. It was founded in 1559 by John Calvin as a theological seminary. It remained focused on theology until the 17th centur ...
as an Assistant Professor. She moved to
Case Western Reserve University Case Western Reserve University (CWRU) is a private research university in Cleveland, Ohio. Case Western Reserve was established in 1967, when Western Reserve University, founded in 1826 and named for its location in the Connecticut Western Reser ...
in 2011 and became an Associate Professor there in 2016. She joined
Imperial College London Imperial College London (legally Imperial College of Science, Technology and Medicine) is a public research university in London, United Kingdom. Its history began with Prince Albert, consort of Queen Victoria, who developed his vision for a cu ...
in 2016. In 2016 she was awarded a £100,000 Wolfson Merit Award from the Royal Society, "Massive Gravity from Cosmology to Condensed Matter Systems". Her research is in the area of theoretical cosmology, and she explores gravitational models which could explain the accelerated expansion of the Universe. de Rham is recognised as a researcher at the forefront of the development of theories of
massive gravity In theoretical physics, massive gravity is a theory of gravity that modifies general relativity by endowing the graviton with a nonzero mass. In the classical theory, this means that gravitational waves obey a massive wave equation and hence travel ...
, where the particle carrier of the gravitational force, the
graviton In theories of quantum gravity, the graviton is the hypothetical quantum of gravity, an elementary particle that mediates the force of gravitational interaction. There is no complete quantum field theory of gravitons due to an outstanding mathem ...
, may be massive. In 2010 de Rham constructed a nonlinear theory of massive graviton, which is theoretically consistent and
ghost A ghost is the soul or spirit of a dead person or animal that is believed to be able to appear to the living. In ghostlore, descriptions of ghosts vary widely from an invisible presence to translucent or barely visible wispy shapes, to rea ...
free. The massive gravity is now known as "de Rham-Gabadadze-Tolley (dRGT) theory", owing to the discovery by de Rham,
Gregory Gabadadze Gregory Gabadadze is a physicist of Georgian origin. He is a professor of physics and dean for science at New York University, where he served previously as chair of the Department of Physics and as the director of the Center for Cosmology and Par ...
, and Andrew J. Tolley. Her research helps tackle the problem of the
cosmological constant In cosmology, the cosmological constant (usually denoted by the Greek capital letter lambda: ), alternatively called Einstein's cosmological constant, is the constant coefficient of a term that Albert Einstein temporarily added to his field equ ...
, and could describe the accelerated expansion of the universe as a purely gravitational effect, where massive gravitons are responsible for the so-called ''
dark energy In physical cosmology and astronomy, dark energy is an unknown form of energy that affects the universe on the largest scales. The first observational evidence for its existence came from measurements of supernovas, which showed that the univer ...
''. In 2015 she gave a TEDx talk titled ''Nature of the Graviton''. She has discussed the underrepresentation of girls in physics with the Ideas Roadshow. She gives regular public lectures about theoretical cosmology. de Rham has been interviewed by
Morgan Freeman Morgan Freeman (born June 1, 1937) is an American actor, director, and narrator. He is known for his distinctive deep voice and various roles in a wide variety of film genres. Throughout his career spanning over five decades, he has received ...
in season 8 of ''
Through the Wormhole ''Through the Wormhole'' is an American science documentary television series narrated and hosted by American actor Morgan Freeman. It began airing on Science Channel in the United States on June 9, 2010. The series concluded its run on May 16 ...
''.


Awards and leadership roles

*2023: Elected to the
American Academy of Arts and Sciences The American Academy of Arts and Sciences (abbreviation: AAA&S) is one of the oldest learned societies in the United States. It was founded in 1780 during the American Revolution by John Adams, John Hancock, James Bowdoin, Andrew Oliver, and ...
*2020:
Blavatnik Awards for Young Scientists Blavatnik Awards for Young Scientists was established in 2007 through a partnership between the Blavatnik Family Foundation, headed by Leonard Blavatnik (Russian: Леонид Валентинович Блаватник), chairman of Access Indust ...
: winner, UK Physical Sciences and Engineering * 2018:
St John's College, Cambridge St John's College is a Colleges of the University of Cambridge, constituent college of the University of Cambridge founded by the House of Tudor, Tudor matriarch Lady Margaret Beaufort. In constitutional terms, the college is a charitable corpo ...
Adams Prize The Adams Prize is one of the most prestigious prizes awarded by the University of Cambridge. It is awarded each year by the Faculty of Mathematics at the University of Cambridge and St John's College to a UK-based mathematician for distinguis ...
* 2018: Blavatnik Award for Young Scientists: finalist, UK Physical Sciences and Engineering * 2017: EPFL Alumni Award * 2017–2021: PI on
Simons Foundation The Simons Foundation is a private foundation established in 1994 by Marilyn and Jim Simons with offices in New York City. As one of the largest charitable organizations in the US with assets of over $5 billion in 2022, the foundation's mission ...
Award, 'Origins of the Universe' program with Rachel Rosen * 2017–2022: PI on ERC consolidator grant, for the project "Massive Gravity and Cosmology," * 2016–2021: Royal Society Wolfson Merit Award * 2012–2013: PI on ACES Advance Opportunity Grant, for the project "Recent Developments in Massive Gravity" * 2010–2014: PI on Swiss National Foundation Professorship Grant, for the project "Challenging the cosmological paradigm"


See also

*
Bimetric gravity Bimetric gravity or bigravity refers to two different classes of theories. The first class of theories relies on modified mathematical theories of gravity (or gravitation) in which two metric tensors are used instead of one. The second metric may ...


References

{{DEFAULTSORT:de Rham, Claudia Living people Swiss cosmologists 21st-century Swiss physicists Swiss women physicists Theoretical physicists 1978 births Scientists from Lausanne Alumni of the University of Cambridge École Polytechnique alumni École Polytechnique Fédérale de Lausanne alumni Fellows of the American Academy of Arts and Sciences