37 citations · 98 across the 18 of their papers we have counts for
19 papers
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…
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…
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…
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…
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…
Performance optimization of Nernst-based thermionic engines
Wei Yan, Minglong Lv, Ousi Pan +3
In this paper, we examine the power and efficiency of the thermionic device utilizing the Nernst effect, with a specific focus on its potential application as an engine. The device…
Optimal neutralization of negative space charges in photon-enhanced thermionic emission devices under bidirectional discharge
Xinqiao Lin, Zhiqiang Fan, Shunjie Zhang +4
In this study, we innovatively modeled photon-enhanced thermionic emission (PETE) devices, incorporating positive ion injection and bidirectional discharge's effects on the space c…
Centenary progress from the Nernst theorem to the Nernst statement
Xiaohang Chen, Shanhe Su, Yinghui Zhou +1
It is found from textbooks that there are the different versions of the schematic diagram related to the Nernst equation, and consequently, it leads to some discussion related to t…
Hot-carrier photocatalysts with energy-selective contacts based on quantum wells and dots
Shuanglong Han, Zhiqiang Fan, Ousi Pan +5
In this paper, we simulate the function of hot-carrier photocatalysts (HCPCs) with quantum well and quantum dot energy-selective contacts (ESCs) in the water-splitting reaction. Th…
A new succinct proof on the equivalence of the Nernst equation and the vanishing heat capacity at absolute zero temperature
Shanhe Su, Jincan Chen
By starting from the Euler chain rule of three thermodynamic quantities, it is proved that both the Nernst equation and the vanishing heat capacity at absolute zero temperature are…
The effect of space charge on photon-enhanced thermionic emission in the presence of the bidirectional discharge
Xinqiao Lin, Ousi Pan, Zhimin Yang +3
The bidirectional space charge effects in photon-enhanced thermionic emission (PETE) devices are investigated systematically. First, we precisely determine the carrier concentratio…
Efficiency bounds for bipartite information-driven thermodynamic systems
Shihao Xia, Shuanglong Han, Ousi Pan +3
This study introduces a novel approach to derive a lower bound for the entropy production rate of a subsystem by utilizing the Cauchy-Schwarz inequality. It extends to establishing…
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…
Breakthrough of a cross-century problematic issue:The perfect statements of the third law of thermodynamics
Xiaohang Chen, Shanhe Su, Yinghui Zhou +1
The third law of thermodynamics has been verified experimentally, but how to perfectly express such a law in theory has become a cross-century problematic issue. It is found from t…
Theoretical bound of the efficiency of learning
Shanhe Su, Ousi Pan, Shihao Xia +2
A unified thermodynamic formalism describing the efficiency of learning is proposed. First, we derive an inequality, which is more strength than Clausius's inequality, revealing th…
Suppressing coherence effects in quantum-measurement based engines
Zhiyuan Lin, Shanhe Su, Jingyi Chen +2
The recent advances in the study of thermodynamics of microscopic processes have driven the search for new developments in energy converters utilizing quantum effects. We here prop…
Nonequilibrium free energy and information flow of a double quantum-dot system with Coulomb coupling
Zhiyuan Lin, Tong Fu, Juying Xiao +3
We build a double quantum-dot system with Coulomb coupling and aim at studying the connections among the entropy production, free energy, and information flow. By utilizing the con…
The heat and work of quantum thermodynamic processes with quantum coherence
Shan-He Su, Jin-Fu Chen, Yu-Han Ma +2
Energy is often partitioned into heat and work by two independent paths corresponding to the change in the eigenenergies or the probability distributions of a quantum system. The d…
Photoelectric converters with quantum coherence
Shan-He Su, Chang-Pu Sun, Sheng-Wen Li +1
Photon impingement is capable of liberating electrons in electronic devices and driving the electron flux from the lower chemical potential to higher chemical potential. Previous s…