10 citations · 15 across the 2 of their papers we have counts for
5 papers
Variational approximations for correlation functions in quantum field theories
Cécile Martin
Applying the time-dependent variational principle of Balian and Vénéroni, we derive variational approximations for multi-time correlation functions in field theory. We assume…
The Poisson structure of the mean-field equations in the Phi^4 theory
Cecile Martin
We show that the mean-field time dependent equations in the Phi^4 theory can be put into a classical non-canonical hamiltonian framework with a Poisson structure which is a general…
Variational approximation for two-time correlation functions in theory : optimization of the dynamics
Cécile Martin
We apply the time-dependent variational principle of Balian and Vénéroni to the theory. An appropriate parametrization for the variational objects allows us to write coupled…
Self Similar Solutions of the Evolution Equation of a Scalar Field in an Expanding Geometry
F. Braghin, C. Martin, D. Vautherin
We consider the functional Schrodinger equation for a self interacting scalar field in an expanding geometry. By performing a time dependent scale transformation on the argument of…
Ground State Properties and Glueball Spectrum in SU(2) Yang-Mills Theory using Gauge Invariant Variables
C. Martin, D. Vautherin
We describe a nonperturbative calculation of the spectrum of SU(2) Yang-Mills theory based on a Hamiltonian formulation. Our approach exploits gauge invariant variables similar to…