39 citations · 109 across the 5 of their papers we have counts for
5 papers
Chiral Symmetry Breaking in QCD: A Variational Approach
C. Arvanitis, F. Geniet, J. -L. Kneur +1
We develop a "variational mass" expansion approach, recently introduced in the Gross--Neveu model, to evaluate some of the order parameters of chiral symmetry breakdown in QCD. The…
Equivalence between light-cone and conformal gauge in the two-dimensional string
C. Arvanitis, R. Tzani
Aiming towards understanding the question of the discrete states in the light-cone gauge in the theory of two-dimensional strings with a linear background charge term, we study the…
Variational Solution of the Gross-Neveu Model: finite and Renormalization
C. Arvanitis, F. Geniet, M. Iacomi +2
We show how to perform systematically improvable variational calculations in the Gross-Neveu model for generic , in such a way that all infinities usually plaguing such…
Variational Solution of the Gross-Neveu model I. the Large- Limit
C. Arvanitis, F. Geniet, A. Neveu
In this first paper we begin the application of variational methods to renormalisable asymptotically free field theories, using the Gross-Neveu model as a laboratory. This variatio…
Convergence of the Optimized Delta Expansion for the Connected Vacuum Amplitude -- Anharmonic Oscillator
C. Arvanitis, H. F. Jones, C. S. Parker
The convergence of the linear expansion for the connected generating functional of the quantum anharmonic oscillator is proved. Using an order-dependent scaling for the variati…