6 papers
Autonomous Thermal Switching Outperforms the Frozen Optimum with Vanishing Correlations
Siyi Deng, Longxing Xu, Zhuolin Ye +2
Can autonomous thermal switching outperform the best frozen barrier allocation while keeping system--auxiliary correlations arbitrarily small? We establish this relaxation advantag…
Local response theory of multiparameter sudden-quench quantum Otto engines
Dehua Liu, Yihang Cai, Biao Xiong +3
Multiparameter quantum Otto engines raise an optimization problem absent in single-parameter cycles: which small quench vector maximizes the quadratic approximation to the exact ou…
Optimal phase control of a measurement-assisted quantum refrigerator
Jinkai Liu, Xian He, Jizhou He +1
A tilted nonselective measurement can close the upper transition of a three-level quantum refrigerator, but it also generates coherence that feeds back on the populations and suppr…
Experimental Demonstration of a Measurement-Feedback Quantum Information Engine
Jinfeng Wei, Yingying Hong, Dehua Liu +8
Harnessing finite-time nonadiabatic transitions that are conventionally associated with quantum inner friction for useful work extraction remains an open experimental challenge. He…
Measurement-Feedback Quantum Information Engine: Coherence-Transition Interference and Correlated Work Statistics
Yingying Hong, Dehua Liu, Jinfeng Wei +2
Measurement and feedback jointly prepare coherence and select finite-time dynamics in quantum information engines. Complementing a companion experimental realization, we develop a…
Geometric Mode Steering of the Quantum Mpemba Effect
Yingying Hong, Longxing Xu, Weiwei Zhang +2
The slowest Liouvillian mode often bottlenecks the relaxation of an open quantum system to its steady state. Standard strategies circumvent this bottleneck by selecting special ini…