Quantum-dot circuit-QED thermoelectric diodes and transistors

Abstract

Recent breakthroughs in quantum-dot circuit-quantum-electrodynamics (circuit-QED) systems are important both from a fundamental perspective and from the point of view of quantum photonic devices. However, understanding the applications of such setups as potential thermoelectric diodes and transistors has been missing. In this paper, via the Keldysh nonequilibrium Green's function approach, we show that cavity-coupled double quantum-dots can serve as excellent quantum thermoelectric diodes and transistors. Using an enhanced perturbation approach based on polaron-transformations, we find non-monotonic dependences of thermoelectric transport properties on the electron-photon interaction. Strong light-matter interaction leads to pronounced rectification effects for both charge and heat, as well as thermal transistor effects in the linear transport regime, which opens up a cutting-edge frontier for quantum thermoelectric devices.

8 pages, 6 figures

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Cited by in corpus (28)

• Quantum thermodynamic devices: from theoretical proposals to experimental reality
• Geometric thermodynamic uncertainty relation in periodically driven thermoelectric heat engine
• Thermal rectification and heat amplification in a nonequilibrium V-type three-level system
• Photon statistics of a double quantum dot micromaser: Quantum treatment
• Brownian thermal transistors and refrigerators in mesoscopic systems
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• Multitask quantum thermal machines and cooperative effects
• Inelastic thermoelectric transport and fluctuations in mesoscopic system
• Common environmental effects on quantum thermal transistor
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• Strong coupling in thermoelectric nanojunctions: a reaction coordinate framework
• Effective-Hamiltonian theory: An approximation to the equilibrium state of open quantum systems
• Coulomb thermoelectric drag in four-terminal mesoscopic quantum transport
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• Quantum thermal diode with additional control by auxiliary atomic states
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• Quantum heat transport in nonequilibrium anisotropic Dicke model
• Quantum heat transport and effects of quantum thermal devices in noncommuting coupled spins