Eur. Phys. J. Plus (2016) 131: 231
https://doi.org/10.1140/epjp/i2016-16231-3

Regular Article

Thermal bath of Dirac field in non-inertial frames

Department of Physics and Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University, 410081, Hunan, China

^* e-mail: hunnuzaw@163.com

Received: 21 November 2015
Accepted: 16 June 2016
Published online: 7 July 2016

Abstract

The properties of inertial Dirac thermal bath viewed from the perspective of a uniformly accelerated observer is investigated. Using the single-mode approximation, we obtain the expression of the thermal reduced density matrix, which is constructed by the effective partition function in another way compared with the case of scalar field. We deduce the spectrum of particles and antiparticles seen by Rob and antiRob, respectively. It is found that the fermionic thermal bath will suppress the appearance of Unruh particles.