System-environment coupling derived by Maxwell's boundary conditions from weak to ultrastrong light-matter coupling regime
Quantum Physics
2013-07-11 v3 Optics
Abstract
In the standard theory of cavity quantum electrodynamics (QED), coupling between photons inside and outside a cavity (cavity system and photonic reservoir) is given conserving the total number of photons. However, when the cavity photons (ultra)strongly interact with atoms or excitations in matters, the system-reservoir coupling must be determined from a more fundamental viewpoint. Based on the Maxwell's boundary conditions in the QED theory for dielectric media, we derive the quantum Langevin equation and input-output relation, in which the total number of polaritons (not photons) inside the cavity and photons outside is conserved.
Keywords
Cite
@article{arxiv.1301.3960,
title = {System-environment coupling derived by Maxwell's boundary conditions from weak to ultrastrong light-matter coupling regime},
author = {Motoaki Bamba and Tetsuo Ogawa},
journal= {arXiv preprint arXiv:1301.3960},
year = {2013}
}
Comments
14 pages, 2 figures