Impact of amplifying media on the Casimir force

2009/02/28 by Agnes Sambale, Dirk-Gunnar Welsch, Stefan Yoshi Buhmann +2
Engineering · Physics and Astronomy · #Mechanical and Optical Resonators #Quantum Electrodynamics and Casimir Effect #Thermal Radiation and Cooling Technologies #quant-ph

paper · pdf · doi:10.1103/physreva.80.051801

published as Physical Review A 80 (5), 051801(R) (2009) · 5 pages, extensions

openalex publication_date 2009/11/09 · arxiv created 2010/01/04 · arxiv updated 2010/01/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

On the basis of macroscopic quantum electrodynamics, a theory of Casimir forces in the presence of linearly amplifying bodies is presented which provides a consistent framework for studying the effect of, e.g., amplifying left-handed metamaterials on dispersion forces. It is shown that the force can be given in terms of the classical Green tensor and that it can be decomposed into a resonant component associated with emission processes and an off-resonant Lifshitz-type component. We explicitly demonstrate that our theory extends additive approaches beyond the dilute-gas limit.

Citations

• Thermal Casimir versus Casimir-Polder Forces: Equilibrium and Nonequilibrium Forces
• THE ELECTRODYNAMICS OF SUBSTANCES WITH SIMULTANEOUSLY NEGATIVE VALUES OF ε AND μ
• New Developments in the Casimir Effect
• The Casimir effect: Recent controversies and progress
• Casimir-Polder interaction between an excited atom and a gas dielectric medium
• Forces between a Single Atom and Its Distant Mirror Image
• Quantum Cascade Laser