Autonomous Quantum Refrigerator in a Circuit-QED Architecture Based on a Josephson Junction
| Autor: | Ralph Silva, Patrick P. Hofer, Nicolas Brunner, Marcus Huber, Martí Perarnau-Llobet, Jonatan Bohr Brask |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Physics
Josephson effect Quantum Physics Condensed Matter - Mesoscale and Nanoscale Physics business.industry Electrical engineering Refrigerator car Thermal contact FOS: Physical sciences Sense (electronics) 7. Clean energy 01 natural sciences 010305 fluids & plasmas law.invention law 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Absorption refrigerator Current technology 010306 general physics business Quantum Physics (quant-ph) Quantum Harmonic oscillator |
| Zdroj: | Physical Review B |
| Popis: | An implementation of a small quantum absorption refrigerator in a circuit QED architecture is proposed. The setup consists of three harmonic oscillators coupled to a Josephson unction. The refrigerator is autonomous in the sense that it does not require any external control for cooling, but only thermal contact between the oscillators and heat baths at different temperatures. In addition, the setup features a built-in switch, which allows the cooling to be turned on and off. If timing control is available, this enables the possibility for coherence-enhanced cooling. Finally, we show that significant cooling can be achieved with experimentally realistic parameters and that our setup should be within reach of current technology. Main text: 5 pages, 3 figures; Supplement: 2 pages, 2 figures; Published version |
| Databáze: | OpenAIRE |
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