Bernard Julia (born 1952 in Paris) is a French theoretical

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 caus ...

who has made contributions to the theory 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 ...

. He graduated from

Université Paris-Sud Paris-Sud University (French: ''Université Paris-Sud''), also known as University of Paris — XI (or as Université d'Orsay before 1971), was a French research university distributed among several campuses in the southern suburbs of Paris, in ...

in 1978, and is directeur de recherche with the

CNRS The French National Centre for Scientific Research (french: link=no, Centre national de la recherche scientifique, CNRS) is the French state research organisation and is the largest fundamental science agency in Europe. In 2016, it employed 31,637 ...

working at the

École Normale Supérieure 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 1978, together with

Eugène Cremmer Eugène Cremmer (7 February 1942, in Paris – 30 October 2019, in Paris) was a French theoretical physicist. He was directeur de recherche at the CNRS working at the École Normale Supérieure. Cremmer was a postdoc at CERN from 1971–72. In ...

and

Joël Scherk Joël Scherk (; 27 May 1946 – 16 May 1980) was a French theoretical physicist who studied string theory and supergravity. Work Scherk studied in Paris at the École Normale Supérieure (ENS). In 1969 he received his diploma (Thèse de troisiè ...

, he constructed 11-dimensional supergravity. Shortly afterwards, Cremmer and Julia constructed the classical Lagrangian for four-dimensional ''N''=8 supergravity by dimensional reduction from the 11-dimensional theory. Julia also studied

spontaneous symmetry breaking Spontaneous symmetry breaking is a spontaneous process of symmetry breaking, by which a physical system in a symmetric state spontaneously ends up in an asymmetric state. In particular, it can describe systems where the equations of motion or the ...

and the

Higgs mechanism In the Standard Model of particle physics, the Higgs mechanism is essential to explain the generation mechanism of the property "mass" for gauge bosons. Without the Higgs mechanism, all bosons (one of the two classes of particles, the other bein ...

in supergravity Other work includes a study, with A. Zee, of particles called

dyon In physics, a dyon is a hypothetical particle in 4-dimensional theories with both electric and magnetic charges. A dyon with a zero electric charge is usually referred to as a magnetic monopole. Many grand unified theories predict the existence of ...

s that carry both electric and magnetic charges and many papers on

string theory In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. String theory describes how these strings propagate through space and interac ...

M-theory M-theory is a theory in physics that unifies all consistent versions of superstring theory. Edward Witten first conjectured the existence of such a theory at a string theory conference at the University of Southern California in 1995. Witten's ...

, and dualities. In 1986, Julia was awarded the

Prix Paul Langevin The ''prix Paul-Langevin'' is a prize created in 1956 and named in honor of Paul Langevin. It has been awarded each year since 1957 by the ''Société française de physique'' (SFP). The prize honors French physicists for work in theoretical physic ...

of the

Société Française de Physique The Société Française de Physique (SFP), or the French Physical Society, is the main professional society of French physicists. It was founded in 1873 by Charles Joseph d'Almeida. History The French Physical Society is a state-approved non- ...

Notes

External links

Bernard Julia's homepage
{{DEFAULTSORT:Julia, Bernard 1952 births 20th-century French physicists 21st-century French physicists French string theorists Living people French National Centre for Scientific Research scientists

See also

Notes

External links