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PHD thesis

Yang-Mills cosmology and inhomogeneous cosmological models (CHAMPSYM)

Duration

2000-2004

Keywords

Cosmology, gauge theories

Description

Development of a numerical code to integrate the non linear partial differential equations

of Einstein-Yang-Mills theory. The approach is based on constrained hamiltonian formulation.

Analysis of the gravitational stability of Yang-Mills fields (conformal invariance):

diffusion of gauge potentials, dilution of primeval Yang-Mills excitations during expansion.

Comparison between spatially flat, open and closed cosmologies.

Research unit(s)

Research theme(s)

Staff (finished contracts)

Chairperson(s)
Dominique LAMBERT Leader 081/724110
Anne LEMAÎTRE Leader 081/724908

Research staff
André FÜZFA Researcher 081/724940

Publications (5)

Collective work contributions

2003
Evolution of Density Fluctuations in a Universe Dominated by su(2)-valued Yang-Mills Fields, in Astronomy, Cosmology and Fundamental Physics, collection ESO Astrophysics Symposia, volume 1, pp. 446-448
André FÜZFA, Dominique LAMBERT

Papers

2003
Gravitational Instability of Yang-mills Cosmologies, in Classical and Quantum Gravity , volume 20, issue 22, pp. 4753-4774
André FÜZFA
2002
Some Examples of Exponentially Harmonic Maps, in Journal of Physics A, volume 35, pp. 7629-7639
André FÜZFA, Antonin KANFON, Dominique LAMBERT
2002
"The Lemaître-Schwarzschild Problem Revisited", General Relativity and Gravitation, 34 (2002) 1411-1422.
Dominique LAMBERT, André FÜZFA, J-M. GERARD

PHD theses

2004
Instabilités gravitationnelles de champs de Yang-Mills et de champs scalaires dans l'univers primordial
André FÜZFA

Collaborations

  • FUNDP, Faculté des Lettres
  • FUNDP, Département de Physique

Contracts

  • Communauté Française (FRIA), Laboratoire de chimie organique de synthèse