Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Rothe, K. D."'
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
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:
Rothe, K D, Scholtz, F G
Publikováno v:
Annals Phys. 308 (2003) 639-651
We discuss a general procedure for arriving at the Hamilton-Jacobi equation of second-class constrained systems, and illustrate it in terms of a number of examples by explicitely obtaining the respective Hamilton principal function, and verifying tha
Externí odkaz:
http://arxiv.org/abs/hep-th/0308142
Publikováno v:
Mod.Phys.Lett. A17 (2002) 435-452
Following the symplectic approach we show how to embed the Abelian Proca model into a first-class system by extending the configuration space to include an additional pair of scalar fields, and compare it with the improved Dirac scheme. We obtain in
Externí odkaz:
http://arxiv.org/abs/hep-th/0112170
Autor:
Actor, A. A., Rothe, K. D.
Publikováno v:
J.Phys.A33:4585-4598,2000
We present and discuss, at a general level, new mathematical results on the spatial nonuniformity of thermal quantum fields coupled minimally to static background electromagnetic potentials. Two distinct examples are worked through in some detail: un
Externí odkaz:
http://arxiv.org/abs/hep-th/0002208
Publikováno v:
J.Phys.A33:2059-2068,2000
We obtain, for a subclass of structure functions characterizing a first class Hamiltonian system, recursive relations from which the general form of the local symmetry transformations can be constructed in terms of the independent gauge parameters. W
Externí odkaz:
http://arxiv.org/abs/hep-th/9909039
Publikováno v:
Phys.Lett. B479 (2000) 429-434
Using purely Hamiltonian methods we derive a simple differential equation for the generator of the most general local symmetry transformation of a Lagrangian. The restrictions on the gauge parameters found by earlier approaches are easily reproduced
Externí odkaz:
http://arxiv.org/abs/hep-th/9907217
Publikováno v:
Phys.Lett. B463 (1999) 248-251
We reconsider the problem of finding all local symmetries of a Lagrangian. Our approach is completely Hamiltonian without any reference to the associated action. We present a simple algorithm for obtaining the restrictions on the gauge parameters ent
Externí odkaz:
http://arxiv.org/abs/hep-th/9906072