Quadratic enhancement in the reliability of collective quantum engines
Quadratic enhancement in the reliability of collective quantum engines
复制标题
集体量子引擎可靠性的二次增强
DOI:
10.1103/physreva.107.l040202
复制
发表时间:
2022
影响因子:
2.9
通讯作者:
V. Mukherjee
中科院分区:
文献类型:
--
作者:
Noufal Jaseem;Sai Vinjanampathy;V. Mukherjee
We study fluctuations in many-body quantum heat engines operating in the presence of collective system-bath interactions. We show that collective effects in open quantum systems can be harnessed to develop highly consistent many-body quantum engines. We consider quantum Otto engines, modeled by $n$ spins collectively coupled to thermal baths. Our results show that collective effects can significantly reduce the fluctuations in the output work, quantified by high reliability ($r$) and low thermodynamic uncertainty. In contrast to independent engines, we demonstrate a quadratic enhancement of the reliability $r$ for their collective counterparts. We extend our analysis to the case of interacting spin models commonly studied in many-body physics, such as the Lipkin-Meshkov-Glick (LMG) model, thereby broadening the regime of applicability of collective effects in quantum thermal machines significantly. This paves the way forward for realistic collective quantum thermal machines in many body systems.
登录
查看更多内容
影响因子:
8.6
作者:
Rossnagel, J.;Abah, O.;Lutz, E.
通讯作者:
Lutz, E.
DOI:
10.1088/1751-8121/ac0c8f
发表时间:
2021
期刊:
Mathematical and Theoretical
影响因子:
--
作者:
Menczel P
通讯作者:
Menczel P
影响因子:
3.7
作者:
Halpern, Nicole Yunger;White, Christopher David;Refael, Gil
通讯作者:
Refael, Gil
影响因子:
56.9
作者:
Endres, Manuel;Bernien, Hannes;Lukin, Mikhail D.
通讯作者:
Lukin, Mikhail D.
影响因子:
56.9
作者:
Ronagel, Johannes;Dawkins, Samuel T.;Singer, Kilian
通讯作者:
Singer, Kilian