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Sergio Ferrara (born 2 May 1945) is an Italian
physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate cau ...
working on
theoretical physics Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain, and predict List of natural phenomena, natural phenomena. This is in contrast to experimental p ...
of
elementary particle In particle physics, an elementary particle or fundamental particle is a subatomic particle that is not composed of other particles. The Standard Model presently recognizes seventeen distinct particles—twelve fermions and five bosons. As a c ...
s and
mathematical physics Mathematical physics is the development of mathematics, mathematical methods for application to problems in physics. The ''Journal of Mathematical Physics'' defines the field as "the application of mathematics to problems in physics and the de ...
. He is renowned for the discovery of theories introducing supersymmetry as a symmetry of elementary particles (
super Super may refer to: Computing * SUPER (computer program), or Simplified Universal Player Encoder & Renderer, a video converter/player * Super (computer science), a keyword in object-oriented programming languages * Super key (keyboard butto ...
- Yang–Mills theories, together with Bruno Zumino) and of
supergravity In theoretical physics, supergravity (supergravity theory; SUGRA for short) is a modern field theory that combines the principles of supersymmetry and general relativity; this is in contrast to non-gravitational supersymmetric theories such as ...
, the first significant extension of Einstein's
general relativity General relativity, also known as the general theory of relativity, and as Einstein's theory of gravity, is the differential geometry, geometric theory of gravitation published by Albert Einstein in 1915 and is the current description of grav ...
, based on the principle of "local supersymmetry" (together with Daniel Z. Freedman, and Peter van Nieuwenhuizen). He is an emeritus staff member at
CERN The European Organization for Nuclear Research, known as CERN (; ; ), is an intergovernmental organization that operates the largest particle physics laboratory in the world. Established in 1954, it is based in Meyrin, western suburb of Gene ...
and a professor emeritus at the
University of California, Los Angeles The University of California, Los Angeles (UCLA) is a public university, public Land-grant university, land-grant research university in Los Angeles, California, United States. Its academic roots were established in 1881 as a normal school the ...
.


Career

Sergio Ferrara was born on 2 May 1945 in Rome, Italy. He graduated from the University of Rome, obtaining in 1968 the Laurea Degree (the highest Degree that was awarded in Italy at the time). Since then he has worked as a CNEN and INFN researcher at the Frascati National Laboratories; as a CNRS Visiting Scientist at the Laboratoire de Physique Théorique,
École Normale Supérieure École or Ecole may refer to: * an elementary school in the French educational stages normally followed by Secondary education in France, secondary education establishments (collège and lycée) * École (river), a tributary of the Seine flowing i ...
, Paris, and at the Theory Division at CERN,
Geneva Geneva ( , ; ) ; ; . is the List of cities in Switzerland, second-most populous city in Switzerland and the most populous in French-speaking Romandy. Situated in the southwest of the country, where the Rhône exits Lake Geneva, it is the ca ...
. In 1980 he was nominated Full Professor of
theoretical physics Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain, and predict List of natural phenomena, natural phenomena. This is in contrast to experimental p ...
in Italy. He became a staff member of the Theory Division at CERN in 1981. In 1985, he became a Professor of Physics at the
University of California, Los Angeles The University of California, Los Angeles (UCLA) is a public university, public Land-grant university, land-grant research university in Los Angeles, California, United States. Its academic roots were established in 1881 as a normal school the ...
. Since 1986 he has been a senior staff member of the Physics Department at CERN. During the years 2010-2014 he has been a guest professor at CERN as Principal Investigator of the European Research Council Advanced Grant SUPERFIELDS. He is currently a senior staff member, emeritus, at CERN.


Conformal field theory

In 1971–1975, Sergio Ferrara did pioneering work on
conformal field theory A conformal field theory (CFT) is a quantum field theory that is invariant under conformal transformations. In two dimensions, there is an infinite-dimensional algebra of local conformal transformations, and conformal field theories can sometime ...
and the
conformal bootstrap The conformal bootstrap is a non-perturbative mathematical method to constrain and solve Conformal field theory, conformal field theories, i.e. models of particle physics or statistical physics that exhibit similar properties at different levels of ...
. In a series of papers written in collaboration with Raoul Gatto, Aurelio Grillo and Giorgio Parisi, he studied constraints imposed by
conformal symmetry Conformal symmetry is a property of spacetime that ensures angles remain unchanged even when distances are altered. If you stretch, compress, or otherwise distort spacetime, the local angular relationships between lines or curves stay the same. Th ...
on the operator dimensions, the form of the correlation functions, the
operator product expansion In quantum field theory, the operator product expansion (OPE) is used as an axiom to define the product of fields as a sum over the same fields. As an axiom, it offers a non-perturbative approach to quantum field theory. One example is the vertex ...
, and the conformal partial wave expansion for the four-point correlation functions of the theory. This work, together with the similar work by Alexander Polyakov, laid the foundations of
Conformal Field Theory A conformal field theory (CFT) is a quantum field theory that is invariant under conformal transformations. In two dimensions, there is an infinite-dimensional algebra of local conformal transformations, and conformal field theories can sometime ...
.


Supersymmetric Yang-Mills theory

In 1974, with Bruno Zumino, he formulated supersymmetric gauge theories, which opened the way to building supersymmetric extensions of the Standard Model of particle physics and exploring their consequences. This result was obtained independently by Abdus Salam and James Strathdee.


Supergravity

In 1976, Sergio Ferrara, Daniel Z. Freedman, and Peter van Nieuwenhuizen discovered supergravity at
Stony Brook University Stony Brook University (SBU), officially the State University of New York at Stony Brook, is a public university, public research university in Stony Brook, New York, United States, on Long Island. Along with the University at Buffalo, it is on ...
in New York, specifically by describing pure 4D N = 1 supergravity. It was initially proposed as a four-dimensional theory. The theory of supergravity generalizes Einstein's general theory of relativity by incorporating the principles of supersymmetry. In 1982 Sergio together with E. Cremmer, L. Girardello, and A. Van Proeyen were the first to derived the full action of 4D N = 1 supergravity. In 2019 the three were awarded a special Breakthrough Prize in Fundamental Physics of $3 million for the discovery.


Black hole attractors

In 1995, with
Renata Kallosh Renata Elizaveta Kallosh (; ; born 1943) is a Russian-American theoretical physicist. She is a professor of physics at Stanford University, working there on supergravity, string theory and inflationary cosmology. Biography Kallosh was born in ...
and
Andrew Strominger Andrew Eben Strominger (; born 1955) is an American theoretical physicist who is the director of Harvard's Center for the Fundamental Laws of Nature. He has made significant contributions to quantum gravity and string theory. These include his ...
, he formulated the theory of Black Hole attractors, a dynamical mechanism which determines the Bekenstein–Hawking entropy for extremal black holes in terms of their charges.


Awards

* Prix Scientifique de l'UAP, 1991, Paris. ::: "For contributions to Conformal Field Theory and to the discovery of Supergravity" * Dirac Medal, 1993, ICTP, Trieste. (with Daniel Z. Freedman, and Peter van Nieuwenhuizen) ::: "For their discovery of supergravity theory in 1976 and their major contributions in the subsequent developments of the theory. Their discovery led to an explosion of interest in quantum gravity and it transformed the subject, playing a significant role in very important developments in string theory as well as Kaluza-Klein theory" * Honorary Laurea in Physics, 2005, from the University of Rome "Tor Vergata". *
Dannie Heineman Prize for Mathematical Physics Dannie Heineman Prize for Mathematical Physics is an award given each year since 1959 jointly by the American Physical Society and American Institute of Physics. It is established by the Heineman Foundation in honour of Dannie Heineman. As of 201 ...
, 2006, American Physical Society. (with Daniel Z. Freedman, and Peter van Nieuwenhuizen) ::: "For constructing supergravity, the first supersymmetric extension of Einstein's theory of general relativity, and for their central role in its subsequent development." *
Enrico Fermi Prize The Enrico Fermi Prize, first awarded in 2001, is given by the Italian Physical Society (Società Italiana di Fisica). It is a yearly award of €30,000 honoring one or more Members of the Society who have "particularly honoured physics with thei ...
, 2005, Società Italiana di Fisica. (with Gabriele Veneziano and Bruno Zumino) ::: "He honoured Italian physics with his discoveries, substantially contributing to the discoveries leading to the development of modern gravity theories. For his contribution to the discovery of supergravity theory." * Amaldi medal, 2008, SIGRAV (Italian Society for General Relativity and Gravitational Physics), ::: "For his relevant contributions to supergravity models, their matter couplings and their implications for black hole physics, such as the attractor mechanism" * Avogadro Medal (Accademia Nazionale dei Lincei, February 2008) * Miller visiting professorship award (U.C. Berkeley, Fall 2008) * ERC Advanced Grant Award ”Superfields”, n.226455 (2008 call) * Commendatore Ordine al Merito della Repubblica Italiana, 2009. ::: "For services in Theoretical Physics." * Margherita Hack Prize for Science (INAF and Italian Ministry of Culture, Spoleto, 2015) * JINR Medal of Honour (Dubna, 2015) * Ettore Majorana Medal (EMFCSC, Erice, 2016) (with Daniel Z. Freedman, and Peter van Nieuwenhuizen) * Foreign Member of the Russian Academy of Sciences (2016) * Special Breakthrough Prize in Fundamental Physics (with Daniel Z.Freedman and Peter van Nieuwenhuizen), 2019 ::: "For the invention of Supergravity, in which quantum variables are part of the description of the geometry of space time” * Isaac Pomeranchuk Prize (2020) ::: "For his contribution to fundamental aspects of supersymmetry that has been a very important achievement for our understanding of modern supergravity theories"


References


External links


2006 Dannie Heineman Prize for Mathematical Physics Recipient

Sergio Ferrara's profile at UCLA

SUPERFIELDS web pageScientific publications of Sergio Ferrara
on
INSPIRE-HEP INSPIRE-HEP is an open access digital library for the field of high energy physics (HEP). It is the successor of the Stanford Physics Information Retrieval System (SPIRES) database, the main literature database for high energy physics since the 1 ...
{{DEFAULTSORT:Ferrara, Sergio 1945 births Living people People associated with CERN 20th-century Italian physicists Italian theoretical physicists University of California, Los Angeles faculty Foreign members of the Russian Academy of Sciences 21st-century Italian physicists