Work

Electromagnetic response of the electron gas and the thermal Casimir pressure anomaly

Year: 2024

Type: article

Abstract: In this paper, a review of the nonlocal electromagnetic response functions for the degenerate electron gas, computed within standard perturbation theory, is given. These expressions due to Lindhard, Klimontovich and Silin are used to re-analyze the Casimir interaction between two thick conducting plates in the leading order at high temperatures (zeroth term of Matsubara series). Up to small corrections that we discuss, the results of the conventional Drude model are confirmed. The difference between longitudinal and transverse permittivities (or polarization tensors) yields the Landau (orbital) diamagnetism of the electron gas.

Source: International Journal of Modern Physics A

DOI: 10.1142/s0217751x25430079

Author: Carsten Henkel

Institution: University of Potsdam

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: Deutsche Forschungsgemeinschaft

Award: SFB 1636: Elementarprozesse Lichtgetriebener Reaktionen an Nanoskaligen Metallen