Cooling by Cooper pair splitting

Abstract

The electrons forming a Cooper pair in a superconductor can be spatially separated preserving their spin entanglement by means of quantum dots coupled to both the superconductor and independent normal leads. We investigate the thermoelectric properties of such a Cooper pair splitter and demonstrate that cooling of a reservoir is an indication of non-local correlations induced by the entangled electron pairs. Moreover, we show that the device can be operated as a non-local thermoelectric heat engine. Both as a refrigerator and as a heat engine, the Cooper pair splitter reaches efficiencies close to the thermodynamic bounds. As such, our work introduces an experimentally accessible heat engine and a refrigerator driven by entangled electron pairs in which the role of quantum correlations can be tested.

6 pages, 4 figures

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Cited by in corpus (37)

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• Nonlocal thermoelectricity in a Cooper-pair splitter
• Nonlocal Thermoelectricity in a S-TI-S Junction in Contact with a N-Metal Probe: Evidence for Helical Edge States
• A Ballistic Graphene Cooper Pair Splitter
• Nonlocal quantum heat engines made of hybrid superconducting devices
• Heat switch and thermoelectric effects based on Cooper-pair splitting and elastic cotunneling
• Nonlocal thermoelectricity in a topological Andreev interferometer
• Brownian thermal transistors and refrigerators in mesoscopic systems
• Noise and full counting statistics of a Cooper pair splitter
• Nonlinear chiral refrigerators
• Nonlocal thermoelectric engines in hybrid topological Josephson junctions
• Quantum transport through a quantum dot side-coupled to a Majorana bound state pair in the presence of electron-phonon interaction
• Andreev-Coulomb Drag in Coupled Quantum Dots
• Phase-control of bipolar thermoelectricity in Josephson tunnel junctions
• Thermal rectification and negative differential thermal conductivity based on a parallel-coupled double quantum-dot
• Quantum-enhanced performance in superconducting Andreev-reflection engines
• Bipolar Thermoelectricity in Bilayer-Graphene--Superconductor Tunnel Junctions
• Thermoelectric detection of Andreev states in unconventional superconductors
• Superconductor-quantum dot hybrid coolers
• Adiabatic Cooper pair splitter
• Detailed study of nonlinear cooling with two-terminal configurations of topological edge states
• Thermoelectric processes of quantum normal-superconductor interfaces
• Coherent control of thermoelectric currents and noise in quantum thermocouples
• Single-photon pump by Cooper-pair splitting
• Nonlocal thermoelectric detection of interaction and correlations in edge states
• Certifying quantum enhancements in thermal machines beyond the Thermodynamic Uncertainty Relation
• Thermodynamic uncertainty relations in superconducting junctions
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