15 papers
Quantum Coherence as a Thermodynamic Resource Beyond the Classical Uncertainty Bound
Shanhe Su, Cong Fu, Ousi Pan +3
Thermodynamic uncertainty relations (TURs) establish a fundamental trade-off between current precision and entropy production in nonequilibrium systems, yet the role of genuine qua…
Versatile probe state preparation via generalized measurements for quantum sensing and thermometry
Jonas F. G. Santos, Shanhe Su, Moises Rojas
We investigate a probe state preparation protocol based on two non-selective generalized quantum measurements to enhance parameter estimation in single-qubit systems. By fine-tunin…
Large Deviation Functions for Open Quantum Systems with a Strong Symmetry
Fei Liu, Jiayi Gu, Hailong Wang +1
In open quantum systems with strong symmetries, the global scaled cumulant generating function (SCGF) is generally nonanalytic, so the Gärtner-Ellis theorem cannot directly yield…
Balancing Power, Efficiency, and Constancy under Broken Time-Reversal Symmetry
Ousi Pan, Zhiqiang Fan, Shunjie Zhang +3
We derive general trade-off relations among the power, efficiency, and constancy for two-terminal thermoelectric systems in the linear response regime. Constancy, which quantifies…
Non-monotonic Irreversibility in Polytropic Steering
Cong Fu, Youhui Lin, Shanhe Su +1
The efficient manipulation of thermodynamic states within the finite time is fundamentally constrained by the intrinsic dissipative cost. While the slow-driving regime is well-char…
Fluctuation-Dissipation Limits in Quantum Thermoelectric Transport
Ousi Pan, Zhiqiang Fan, Shunjie Zhang +3
As a fundamental measure of stability in nonequilibrium thermodynamics, fluctuations provide critical insight into the performance and reliability of heat engines. In this work, we…