Nonequilibrium steady state transport of collective-qubit system in strong coupling regime

Journal Article · Sun Nov 15 00:00:00 EST 2015 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2015.09.005· OSTI ID:22560264

Wang, Chen; Sun, Ke-Wei

We investigate the steady state photon transport in a nonequilibrium collective-qubit model. By adopting the noninteracting blip approximation, which is applicable in the strong photon–qubit coupling regime, we describe the essential contribution of indirect qubit–qubit interaction to the population distribution, mediated by the photonic baths. The linear relations of both the optimal flux and noise power with the qubits system size are obtained. Moreover, the inversed power-law style for the finite-size scaling of the optimal photon–qubit coupling strength is exhibited, which is proposed to be universal.

• OSTI ID: 22560264
• Journal Information: Annals of Physics, Vol. 362, Issue Complete; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
APPROXIMATIONS
COUPLING
FLUCTUATIONS
OPTICAL SYSTEMS
PHOTON TRANSPORT
PHOTONS
QUBITS
STRONG-COUPLING MODEL