41 citations · 380 across the 32 of their papers we have counts for
14 papers · 1 filter
Extending Covariant Fluctuation Theorems into Quantum Regime through Quasiprobability Approach
Ji-Hui Pei, Tingzhang Shi, Jin-Fu Chen +1
The covariant formulation of stochastic thermodynamics requires treating the stochastic work as a 4-vector, posing significant challenges for quantum systems due to the non-commuta…
Ergodicity Breaking and Scaling Relations for Finite-Time First-Order Phase Transition
Yu-Xin Wu, Jin-Fu Chen, H. T. Quan
Hysteresis and metastable states are typical features associated with ergodicity breaking in the first-order phase transition. We explore the scaling relations of nonequilibrium th…
Promoting Fluctuation Theorems into Covariant Forms
Ji-Hui Pei, Jin-Fu Chen, H. T. Quan
The principle of covariance, a cornerstone of modern physics, asserts the equivalence of all inertial frames of reference. Fluctuation theorems, as extensions of the second law of…
Optimal control theory for maximum power of Brownian heat engines
Jin-Fu Chen, H. T. Quan
The pursuit of achieving the maximum power in microscopic thermal engines has gained increasing attention in recent studies of stochastic thermodynamics. We employ the optimal cont…
Exploring quasiprobability approach to quantum work in the presence of initial coherence: Advantages of the Margenau-Hill distribution
Ji-Hui Pei, Jin-Fu Chen, H. T. Quan
In quantum thermodynamics, the two-projective-measurement (TPM) scheme provides a successful description of stochastic work only in the absence of initial quantum coherence. Extend…
Heat statistics in the relaxation process of the Edwards-Wilkinson elastic manifold
Yu-Xin Wu, Jin-Fu Chen, Ji-Hui Pei +2
The stochastic thermodynamics of systems with a few degrees of freedom has been studied extensively so far. We would like to extend the study to systems with more degrees of freedo…
Hierarchical structure of fluctuation theorems for a driven system in contact with multiple heat reservoirs
Jin-Fu Chen, H. T. Quan
For driven open systems in contact with multiple heat reservoirs, we find the marginal distributions of work or heat do not satisfy any fluctuation theorem, but only the joint dist…
Optimizing Brownian heat engine with shortcut strategy
Jin-Fu Chen
Shortcuts to isothermality provide a powerful method to speed up quasistatic thermodynamic processes within finite-time manipulation. We employ the shortcut strategy to design and…
Quantum-classical correspondence principle for heat distribution in quantum Brownian motion
Jin-Fu Chen, Tian Qiu, H. T. Quan
Quantum Brownian motion, described by the Caldeira-Leggett model, brings insights to understand phenomena and essence of quantum thermodynamics, especially the quantum work and hea…
Geodesic path for the minimal energy cost in shortcuts to isothermality
Geng Li, Jin-Fu Chen, C. P. Sun +1
Shortcut to isothermality is a driving strategy to steer the system to its equilibrium states within finite time, and enables evaluating the impact of a control promptly. Finding o…
Efficiency statistics of a quantum Otto cycle
Zhayu Fei, Jin-Fu Chen, Yu-Han Ma
The stochastic efficiency [G. Verley et al., Nat. Commun. 5, 4721 (2014)] was introduced to evaluate the performance of energy-conversion machines in micro-scale. However, such an…
A microscopic theory of Curzon-Ahlborn heat engine
Y. H. Chen, Jin-Fu Chen, Zhaoyu Fei +1
Abstract The Curzon-Ahlborn (CA) efficiency, as the efficiency at the maximum power (EMP) of the endoreversible Carnot engine, has a significant impact on finite-time thermodynamic…
Extrapolating the thermodynamic length with finite-time measurements
Jin-Fu Chen, C. P. Sun, Hui Dong
The excess work performed in a heat-engine process with given finite operation time τis bounded by the thermodynamic length, which measures the distance during the relaxation along…
Hierarchical Coarse-grained Approach to the Duration-dependent Spreading Dynamics in Complex Networks
Jin-Fu Chen, Yi-Mu Du, Hui Dong +1
Various coarse-grained models have been proposed to study the spreading dynamics in the network. A microscopic theory is needed to connect the spreading dynamics with the individua…