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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Efficiency of a cyclic quantum heat engine with finite-size baths
AU - Mohammady, M.H.
AU - Romito, A.
N1 - © 2019 American Physical Society
PY - 2019/7/16
Y1 - 2019/7/16
N2 - In this paper we investigate the relationship between the efficiency of a cyclic quantum heat engine with the Hilbert space dimension of the thermal baths. By means of a general inequality, we show that the Carnot efficiency can be obtained only when both the hot and cold baths are infinitely large. By further introducing a specific model where the baths are constituted of ensembles of finite-dimensional particles, we further demonstrate the relationship between the engine's power and efficiency, with the dimension of the working substance and the bath particles.
AB - In this paper we investigate the relationship between the efficiency of a cyclic quantum heat engine with the Hilbert space dimension of the thermal baths. By means of a general inequality, we show that the Carnot efficiency can be obtained only when both the hot and cold baths are infinitely large. By further introducing a specific model where the baths are constituted of ensembles of finite-dimensional particles, we further demonstrate the relationship between the engine's power and efficiency, with the dimension of the working substance and the bath particles.
U2 - 10.1103/PhysRevE.100.012122
DO - 10.1103/PhysRevE.100.012122
M3 - Journal article
VL - 100
JO - Physical Review E
JF - Physical Review E
SN - 1539-3755
IS - 1
M1 - 012122
ER -