Necessarily transient quantum refrigerator
| العنوان: | Necessarily transient quantum refrigerator |
|---|---|
| المؤلفون: | Avijit Misra, Sreetama Das, Ujjwal Sen, Amit Kumar Pal, Aditi Sen |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Physics, Quantum Physics, Steady state, Refrigerator car, General Physics and Astronomy, Refrigeration, FOS: Physical sciences, Mechanics, 01 natural sciences, 010305 fluids & plasmas, law.invention, law, Qubit, 0103 physical sciences, Thermal, Absorption refrigerator, Transient (oscillation), 010306 general physics, Quantum Physics (quant-ph), Quantum |
| الوصف: | We show that one can construct a quantum absorption refrigerator that provides refrigeration only in the transient regime, by using three interacting qubits, each of which is also interacting with local heat-bath. The machine either does not provide cooling in the steady state, or the steady state is achieved after a long time. We propose a canonical form of qubit-bath interaction parameters that generates transient cooling without steady-state cooling, and claim that such a phenomenon is generic to small-scale quantum absorption refrigerators. We also show that it is generically possible to have fast cooling. We demonstrate our results for two separate models of thermalization, and show that a transient cooling without steady-state cooling is associated with generation of negligible, or no bipartite quantum correlations. For one of the models of thermalization, we find that the minimum achievable temperature of the refrigerated qubit can remain almost frozen, i.e., unchanged, for a significant region of the parameter space. Comment: v2: 14 pages, 8 figures, discussions added on coefficient of performance, cooling power, and multisite entanglement, previous results unchanged |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa796689de272ae7f72c6f5e526d7298 https://cronfa.swan.ac.uk/Record/cronfa49966 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....aa796689de272ae7f72c6f5e526d7298 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |