Quantum heat diode versus light emission in circuit quantum electrodynamical system

Abstract

Precisely controlling heat transfer in a quantum mechanical system is particularly significant for designing quantum thermodynamical devices. With the technology of experiment advances, circuit quantum electrodynamics (circuit QED) has become a promising system due to controllable light matter interactions as well as flexible coupling strengths. In this paper, we design a thermal diode in terms of the two-photon Rabi model of the circuit QED system. We find that the thermal diode can not only be realized in the resonant coupling but also achieve better performance, especially for the detuned qubit-photon ultrastrong coupling. We also study the photonic detection rates and their nonreciprocity, which indicates similar behaviors with the nonreciprocal heat transport. This provides the potential to understand thermal diode behavior from the quantum optical perspective and could shed new insight into the relevant research on thermodynamical devices.

12 pages, 12 figures. To appear in Physical Review E

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Cited by in corpus (6)

• Quantum heat valve and entanglement in superconducting $LC$ resonators
• Quantum thermal diode with additional control by auxiliary atomic states
• Quantum circuit refrigerator based on quantum dots coupled to normal-metal and superconducting electrodes
• Quantum heat transport in nonequilibrium anisotropic Dicke model
• Behavior of quantum coherence in the ultrastrong and deep strong coupling regimes of light-matter system
• Quantum heat transport and effects of quantum thermal devices in noncommuting coupled spins