Journal
NEW JOURNAL OF PHYSICS
Volume 17, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/17/11/113029
Keywords
thermal machine; entanglement; steady-state; quantum dot; flux qubit
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Funding
- Swiss National Science Foundation [PP00P2_138917]
- Swiss National Science Foundation (Starting Grant DIAQ)
- SEFRI (COST action) [MP1006]
- EUSIQS
- ERC grant MesoQMC
- Juan de la Cierva fellowship [JCI 2012-14155]
- European Commission (STREP 'RAQUEL')
- Spanish MINECO Project [FIS2013-40627-P]
- Generalitat de Catalunya CIRIT Project [2014 SGR 966]
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We discuss a simple quantum thermal machine for the generation of steady-state entanglement between two interacting qubits. The machine is autonomous in the sense that it uses only incoherent interactions with thermal baths, but no source of coherence or external control. By weakly coupling the qubits to thermal baths at different temperatures, inducing a heat current through the system, steady-state entanglement is generated far from thermal equilibrium. Finally, we discuss two possible implementations, using superconducting flux qubits or a semiconductor double quantum dot. Experimental prospects for steady-state entanglement are promising in both systems.
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