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Closed-loop three-level charged quantum battery
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DOI：10.1209/0295-5075/131/43001.png)
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摘要
En 中文
Quantum batteries are energy storage or extraction devices in a quantum system. Here, we present a closed-loop quantum battery by utilizing a circularly coupled three-state quantum system, and investigate its charging dynamics. The charging performance is greatly improved due to the existence of the third field in the system to form a closed-contour interaction. Through appropriately selecting the third control field, the maximum average power can be increased, even far beyond the ideal maximum power value of non-closed-loop three-level quantum battery. We study the effect of the global driving-field phase on the charging process and find that both the maximum extractable work (ergotropy) and the charging power vary periodically under different control fields, with a period of . Possible experimental implementation in nitrogen-vacancy spin is discussed as well.
Keyword:
32
80
Qk
42
50
Dv
03
65
-w
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E
IF:
1.8
论文数:
184
被引数:
1.9W
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