5 papers
Crossover of Scaling Behaviors of Work Cumulants in a Driven Gaussian Field Theory
Yanbo Qiao, Ruohan Xu, H. T. Quan
We derive the finite-temperature characteristic function of work (CFW) for a driven Gaussian field theory and obtain closed-form expressions for all zero-temperature excess-…
A Field-Theoretic Framework for Work Statistics and Universal Scaling in Non-equilibrium Phase Transitions
Yanbo Qiao, Ruohan Xu, H. T. Quan
We develop a field-theoretic framework for work statistics in models driven through criticality. By analyzing the dynamic renormalization group flow of composite power opera…
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…
Scaling Behaviors of Work Cumulants in Slow Isothermal Processes
Ruohan Xu, Yanbo Qiao, H. T. Quan
We study the cumulants of work in a slow isothermal process for gapped systems. Using the Martin-Siggia-Rose-De Dominicis-Janssen (MSRDJ) formalism and the properties of connected…
Exact four-vector work distribution and covariant fluctuation theorems of work for a relativistic particle in an expanding piston
Tingzhang Shi, Chentong Qi, H. T. Quan
We investigate the non-equilibrium four-vector work in an expanding relativistic piston. We derive the exact work distribution in this pedagogical model and find that the joint dis…