General Structure of Non-Equilibrium Thermo Field Dynamics

Quantum stochastic differential equations for boson and fermion systems — Method of Non-Equilibrium Thermo Field Dynamics

A unified canonical operator formalism for quantum stochastic differential equations, including the quantum stochastic Liouville equation and the quantum Langevin equation both of the Itô and the Stratonovich types, is presented within the framework of Non-Equilibrium Thermo Field Dynamics (NETFD). It is performed by introducing an appropriate martingale operator in the Schrödinger and the Heis...

Thermo - chemical dynamics and chemical quasi - equilibrium of plasmas in thermal non - equilibrium

Plasmas have a broad field of applications, such as air-breathing hypersonic vehicles (plasma control for scramjet engine), spacecraft atmospheric entries (influence of precursor electrons and prediction of blackout phenomenon), high-enthalpy wind tunnels (plasmatron, arc-jet, and shock tube facilities), lightning phenomena, discharges at atmospheric pressure, laboratory nuclear fusion and astr...

Non-Equilibrium Dynamics and Structure Formation

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.

A Second Supersymmetry in Thermo Field Dynamics

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 ne...