Please use this identifier to cite or link to this item: https://doi.org/10.1038/s41467-018-08090-0
Title: Quantum absorption refrigerator with trapped ions
Authors: Maslennikov, G 
Ding, S 
Hablützel, R 
Gan, J 
Roulet, A 
Nimmrichter, S 
Dai, J 
Scarani, V 
Matsukevich, D 
Keywords: absorption
Article
cooling
energy transfer
heat
heat transfer
motion
phonon
quantum chemistry
steady state
thermodynamics
Issue Date: 2019
Publisher: Nature Publishing Group
Citation: Maslennikov, G, Ding, S, Hablützel, R, Gan, J, Roulet, A, Nimmrichter, S, Dai, J, Scarani, V, Matsukevich, D (2019). Quantum absorption refrigerator with trapped ions. Nature Communications 10 (1) : 202. ScholarBank@NUS Repository. https://doi.org/10.1038/s41467-018-08090-0
Abstract: In recent years substantial efforts have been expended in extending thermodynamics to single quantum systems. Quantum effects have emerged as a resource that can improve the performance of heat machines. However in the fully quantum regime their implementation still remains a challenge. Here, we report an experimental realization of a quantum absorption refrigerator in a system of three trapped ions, with three of its normal modes of motion coupled by a trilinear Hamiltonian such that heat transfer between two modes refrigerates the third. We investigate the dynamics and steady-state properties of the refrigerator and compare its cooling capability when only thermal states are involved to the case when squeezing is employed as a quantum resource. We also study the performance of such a refrigerator in the single shot regime made possible by coherence and demonstrate cooling below both the steady-state energy and a benchmark set by classical thermodynamics. © 2019, The Author(s).
Source Title: Nature Communications
URI: https://scholarbank.nus.edu.sg/handle/10635/174186
ISSN: 20411723
DOI: 10.1038/s41467-018-08090-0
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