5 papers · 1 filter
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…
Unlocking inaccessible performance of the quantum refrigerator with catalysts
Cong Fu, Ousi Pan, Zhiqiang Fan +4
Quantum thermal machines offer promising platforms for exploring the fundamental limits of thermodynamics at the microscopic scale. The previous study demonstrated that the incorpo…
Geometric Bound for Trade-off Relation in Quantum Tricycle
Shihao Xia, Jingyi Chen, Jincan Chen +1
We establish a finite-time quantum tricycle driven by an external field and investigate its thermodynamic performance in the slow-driving regime. By developing a perturbative expan…
Performance optimization of a finite-time quantum tricycle
Jingyi Chen, Shihao Xia, Jincan Chen +1
We establish a finite-time external field-driven quantum tricycle model. Within the framework of slow driving perturbation, the perturbation expansion of heat in powers of time can…