Work

Nonequilibrium Casimir pressure for two graphene-coated plates: Quantum field theoretical approach

Year: 2024

Type: article

Abstract: In this paper, we consider the nonequilibrium Casimir pressure in the system of two parallel graphene-coated plates one of which is either warmer or cooler than the environment. The electromagnetic response of graphene coating characterized by the nonzero energy gap and chemical potential is described in the framework of the Dirac model by means of the polarization tensor. It is shown that the magnitude of the nonequilibrium Casimir pressure on a warmer plate than the environment is larger and on a cooler plate it is smaller than the magnitude of the standard Casimir pressure in the state of thermal equilibrium. According to our results, the spatially local theory underestimates the role of the effects of nonequilibrium. This underestimation increases for a smaller chemical potential of the graphene coating and at lower temperatures of the cooled plate. Possible applications of the obtained results are indicated.

Source: International Journal of Modern Physics A

DOI: 10.1142/s0217751x25430031

Authors: G. L. Klimchitskaya, C. C. Korikov, V. M. Mostepanenko

Institutions: Russian Academy of Sciences, Peter the Great St. Petersburg Polytechnic University, Pulkovo Observatory

Language: English

Topic: Quantum Electrodynamics and Casimir Effect

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Ministry of Science and Higher Education of the Russian Federation

OpenAlex ID: W4405851569

FWCI: 0.164

Cites: 33

Cited by: 1

Related to: 10