Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Belvedere, L. V."'
Autor:
Amaral, R. L. P. G., Belvedere, L. V.
We develop the construction of fermionic fields in terms of bosonic ones to describe free and interaction models in the circle, using thermofielddynamics. The description in the case of finite temperature is developed for both normal modes and zero m
Externí odkaz:
http://arxiv.org/abs/1408.2888
Publikováno v:
J.Phys.A44:145402,2011
The recent generalization of the Lowenstein-Swieca operator solution of Quantum Electrodynamics in 1+1 dimensions to finite temperature in Thermofield Dynamics is further generalized to include a non-vanishing chemical potential. The operator solutio
Externí odkaz:
http://arxiv.org/abs/1101.5368
Publikováno v:
J.Phys.A44:025401,2011
The Schwinger model at finite temperature is analyzed using the Thermofield Dynamics formalism. The operator solution due to Lowenstein and Swieca is generalized to the case of finite temperature within the thermofield bosonization approach. The gene
Externí odkaz:
http://arxiv.org/abs/0908.1558
Publikováno v:
Annals Phys.323:2662-2684,2008
We consider the perturbative computation of the N-point function of chiral densities of massive free fermions at finite temperature within the thermofield dynamics approach. The infinite series in the mass parameter for the N-point functions are comp
Externí odkaz:
http://arxiv.org/abs/0801.4784
Autor:
Belvedere, L. V., Rodrigues, A. F.
Using the operator formulation we discuss the bosonization of the two-dimensional derivative-coupling model. The fully bosonized quantum Hamiltonian is obtained by computing the composite operators as the leading terms in the Wilson short distance ex
Externí odkaz:
http://arxiv.org/abs/0801.1746
Autor:
Belvedere, L. V.
Publikováno v:
Phys.Rev.D74:107701,2006
The main objective of this paper was to obtain the two-dimensional order and disorder thermal operators using the Thermofield Bosonization formalism. We show that the general property of the two-dimensional world according with the bosonized Fermi fi
Externí odkaz:
http://arxiv.org/abs/hep-th/0610312
The Thirring interaction in the two-dimensional axial-current-pseudoscalar derivative coupling model
Autor:
Belvedere, L. V., Rodrigues, A. F.
Publikováno v:
AnnalsPhys.321:2793-2809,2006
The authors reexamine the two-dimensional model of massive fermions interacting with a massless pseudoscalar field via axial-current-pseudoscalar derivative coupling. Performing a canonical field transformation on the Bose field algebra the model is
Externí odkaz:
http://arxiv.org/abs/hep-th/0601119
Publikováno v:
Annals Phys. 320 (2005) 399-428
The main objective of this paper is to obtain an operator realization for the bosonization of fermions in 1 + 1 dimensions, at finite, non-zero temperature T. This is achieved in the framework of the real time formalism of Thermofield Dynamics. Forma
Externí odkaz:
http://arxiv.org/abs/hep-th/0504012
Autor:
Belvedere, L. V., Rodrigues, A. F.
Publikováno v:
Annals Phys. 317 (2005) 423-443
We consider the Wess-Zumino-Witten theory to obtain the functional integral bosonization of the Thirring-Wess model with an arbitrary regularization parameter. Proceeding a systematic of decomposing the Bose field algebra into gauge-invariant- and ga
Externí odkaz:
http://arxiv.org/abs/hep-th/0412107
Publikováno v:
Annals Phys. 296 (2002) 98-127
Using a synthesis of the functional integral and operator approaches we discuss the fermion-boson mapping and the role played by the Bose field algebra in the Hilbert space of two-dimensional gauge and anomalous gauge field theories with massive ferm
Externí odkaz:
http://arxiv.org/abs/hep-th/0010080