Data di Pubblicazione:
2009
Citazione:
Bogoliubov transformations and fermion condensates in lattice field theories / S. Caracciolo, F. Palumbo, G. Viola. - In: ANNALS OF PHYSICS. - ISSN 0003-4916. - 324:3(2009), pp. 589-599.
Abstract:
We apply generalized Bogoliubov transformations to the transfer matrix of relativistic field theories regularized on a lattice. We derive the conditions these transformations must satisfy to factorize the transfer matrix into two terms which propagate fermions and antifermions separately, and we solve the relative equations under some conditions. We relate these equations to the saddle point approximation of a recent bosonization method and to the Foldy-Wouthuysen transformations which separate positive from negative energy states in the Dirac Hamiltonian.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Bogoliubov transformation; Bosonization; Fermion condensate; Foldy-Wouthuysen transformation; Lattice field theory
Elenco autori:
S. Caracciolo, F. Palumbo, G. Viola
Link alla scheda completa: