A Second Supersymmetry in Thermo Field Dynamics
نویسنده
چکیده
This article is an extension of the work done in [1] by R. Parthasarathy and R. Sridhar. There they consider supersymmetry in an enlarged thermal system (in a thermo field dynamic formulation) and show that this supersymmetry is not broken at finite temperature. Here we show, using an SU(1, 1) R-symmetry, that this system obeys a second supersymmetry. In addition, we proceed to see that this new supersymmetry also remains unbroken at finite temperatures. ∗e-mail: [email protected]
منابع مشابه
Supersymmetry in Thermo Field Dynamics
By considering the enlarged thermal system including the heat bath, it is shown that this system has supersymmetry which is not broken at finite temperature. The superalgebra is constructed and the Hamiltonian is expressed as the anti-commutator of two kinds of super charges. With this Hamiltonian and the thermal vaccum | 0(β) >, this supersymmetry is found to be preserved.
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