Coherent Manipulation of Thermal Transport by Tunable Electron-Photon and Electron-Phonon Interaction

Abstract

We propose a system where coherent thermal transport between two reservoirs in non-galvanic contact is modulated by independently tuning the electron-photon and the electron-phonon coupling. The scheme is based on two gate-controlled electrodes capacitively coupled through a dc-SQUID as intermediate phase-tunable resonator. Thereby the electron-photon interaction is modulated by controlling the flux threading the dc-SQUID and the impedance of the two reservoirs, while the electron-phonon coupling is tuned by controlling the charge carrier concentration in the electrodes. To quantitatively evaluate the behavior of the system we propose to exploit graphene reservoirs. In this case, the scheme can work at temperatures reaching 1 K, with unprecedented temperature modulations as large as 245 mK, transmittance up to 99% and energy conversion efficiency up to 50%. Finally, the accuracy of heat transport control allows to use this system as an experimental tool to determine the electron-phonon coupling in two dimensional electronic systems (2DES).

5 pages, 4 figures

References in corpus (10)

• The electronic properties of graphene
• Single-mode heat conduction by photons
• The Josephson heat interferometer
• Supercollision cooling in undoped graphene
• Mesoscopic photon heat transistor
• Electron-phonon mediated heat flow in disordered graphene
• Ultrasensitive Proximity Josephson Sensor with Kinetic Inductance Read-Out
• A Microwave Josephson Refrigerator
• Cooling electrons from 1 K to 400 mK with V-based nanorefrigerators
• Cooling electrons by magnetic-field tuning of Andreev reflection

Cited by in corpus (6)

• Towards phase-coherent caloritronics in superconducting circuits
• Electron cooling with graphene-insulator-superconductor tunnel junctions and applications to fast bolometry
• Highly efficient phase-tunable photonic thermal diode
• Photonic heat amplifiers based on a disordered semiconductor
• Photonic Negative Differential Thermal Conductance Enabled by NIS Junctions
• Photonic heat transport from weak to strong coupling