Article
Chemistry, Physical
Wei Wu, Jin Wang
Summary: In this study, we establish the nonequilibrium equation of state for open Hamiltonian systems in contact with multiple heat baths in the stochastic thermodynamics framework. The nonequilibrium equation of state consists of an equilibrium part and a nonequilibrium correction part, which depend on the average temperature and temperature differences of the heat baths, respectively. Furthermore, the nonequilibrium equation of state also depends on the friction coefficients arising from system-bath interactions, suggesting a relational condition between the system and the heat baths.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Physics, Fluids & Plasmas
Ugur Cetiner, Jeremy Gunawardena
Summary: In this study, the properties of steady-state probabilities are investigated. It is found that steady-state probabilities are related to the entropy along minimal paths and can be expressed as averages over a probability distribution on spanning trees. By applying Arrhenius rates to the arboreal distribution, a thermodynamic interpretation for steady-state probabilities is provided. This approach extends equilibrium statistical mechanics and reorganizes the complexity of the expression.
Article
Optics
Tiago F. F. Santos, Francesco Tacchino, Dario Gerace, Michele Campisi, Marcelo F. Santos
Summary: This study analyzes the efficiency and power output of two-stage quantum heat engines powered by nonequilibrium steady states and discusses the role of this dynamics in the overall performance of quantum heat engines. The thermal machine process includes a charging stage and a work extraction stage, with the overall cycle involving the switching on and off of external drive.
Article
Physics, Multidisciplinary
Markus Rademacher, Michael Konopik, Maxime Debiossac, David Grass, Eric Lutz, Nikolai Kiesel
Summary: This study verifies the validity of fluctuation theorems in the presence of simultaneous mechanical and thermal changes by implementing fast and controlled temperature variations using feedback cooling techniques.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Fluids & Plasmas
Toshihiro Matsuo, Akihiko Sonoda
Summary: We investigate entropy production in finitely slow transitions between nonequilibrium steady states in Markov jump processes. We use the improved adiabatic approximation method to obtain nonadiabatic corrections and analyze two types of excess entropy production. Numerical study is conducted on a two-state system.
Article
Chemistry, Physical
Hyun-Myung Chun, Jordan. M. M. Horowitz
Summary: We investigate the effects of logarithmic perturbations of reaction rates on chemical reaction networks driven far from equilibrium. Our findings show that the response of the average number of chemical species is limited by both number fluctuations and the maximum thermodynamic driving force. We provide evidence for these trade-offs in linear chemical reaction networks and a specific class of nonlinear chemical reaction networks with a single chemical species. Numerical results from various model systems suggest that these trade-offs hold for a wide range of chemical reaction networks, although their specific form seems to depend on the network's deficiency.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Physics, Fluids & Plasmas
Vladislav Yu. Shishkov, Evgeny S. Andrianov
Summary: Invariant subspaces in the system Hilbert space appear in non-equilibrium Bose-Einstein condensate (BEC) in the fast thermalization limit, allowing the investigation of properties of non-ideal non-equilibrium BEC independently in each invariant subspace. The change in the dispersion curve caused by non-linearity in BEC can significantly affect the stability of BEC, with redshift potentially leading to negative compressibility and instability, while the change in effective mass makes BEC more stable.
Article
Physics, Fluids & Plasmas
Takuya Kamijima, Sosuke Ito, Andreas Dechant, Takahiro Sagawa
Summary: This article investigates the driving forces that push a system out of equilibrium, such as time-dependent and nonconservative forces. The dissipation of the system can then be decomposed into two nonnegative parts, known as excess and housekeeping entropy productions. Thermodynamic uncertainty relations are derived for these entropy components, which can serve as useful tools for estimating their individual contributions. A decomposition of an arbitrary current into housekeeping and excess parts is also introduced, providing lower bounds for their respective entropy productions. Additionally, a geometric interpretation of the decomposition is presented, revealing that the uncertainties of the two components are not independent and must obey a joint uncertainty relation, resulting in a tighter bound on the total entropy production. The findings are applied to illustrate the physical interpretation of current components and how to estimate entropy production.
Article
Multidisciplinary Sciences
Giulio Chiribella, Fei Meng, Renato Renner, Man-Hong Yung
Summary: This work investigates the minimum amount of nonequilibrium resources needed to achieve a target level of accuracy in information processing. The authors establish a fundamental limit on accuracy achievable with a given amount of nonequilibrium resources, which applies to arbitrary information processing tasks and systems subject to quantum mechanics. They also establish the optimal tradeoff between nonequilibrium and accuracy and provide a framework for demonstrating thermodynamical advantages of quantum devices.
NATURE COMMUNICATIONS
(2022)
Article
Optics
T. A. B. Pinto Silva, R. M. Angelo
Summary: Defined as a fundamental concept in classical mechanics and thermodynamics, work has been given solid definitions within the quantum framework since the 1970s and has been successfully applied in various contexts. Recent developments in the field of quantum thermodynamics have characterized work as a stochastic variable, paving the way for frameworks involving quantum superposition and nonlocal steering of work. By treating work as a quantum mechanical observable with a well-defined classical limit, researchers have materialized scenarios involving a few-particle system in a pure state and abandoned to its closed autonomous dynamics. Further research is needed to explore the experimental testability of this quantum mechanical notion of work and its implications for energy conservation.
Article
Physics, Multidisciplinary
Naoto Shiraishi
Summary: We propose a time-symmetric counterpart of the current in stochastic thermodynamics called the timesymmetric current. This current is defined using empirical measures and is therefore symmetric under time reversal, while its ensemble average reproduces the average current. We prove that this timesymmetric current satisfies the fluctuation-response relation, albeit with sign inversion. Importantly, this relation holds not only near equilibrium states but also around nonequilibrium stationary states when observed currents stall. The obtained relation also serves as an experimental tool for measuring the value of a bare transition rate by measuring only time-integrated empirical measures.
PHYSICAL REVIEW LETTERS
(2022)
Article
Optics
Riddhi Ghosh, Ahana Ghoshal, Ujjwal Sen
Summary: We find that transient quantum thermal transistors can have different amplification effects and operating regions for certain initial states. The last type of transient thermal transistor is particularly interesting as it can also operate in the region where the transistor effect is lost.
Article
Environmental Studies
Marian Jacobs
Summary: The formalisation of the entropy law in 1865 by Rudolf Clausius led to the development of necessary epistemological instruments for the second industrial revolution. German physicists applied physics to industrialize the state and made energy a significant aspect of state governance.
ENERGY RESEARCH & SOCIAL SCIENCE
(2023)
Article
Physics, Multidisciplinary
Shachar Fraenkel, Moshe Goldstein
Summary: Entanglement measures are important tools to quantitatively describe the entanglement properties in quantum many-body systems out of equilibrium. In this study, we investigate the entanglement in the current-carrying steady state of a one-dimensional model of noninteracting fermions at zero temperature with a scatterer. We find that disjoint intervals located on opposite sides of the scatterer and within similar distances maintain volume-law entanglement regardless of their separation, as measured by their fermionic negativity and coherent information. The mutual information of the intervals, which quantifies the total correlations between them, follows a similar scaling.
Article
Physics, Multidisciplinary
Sreekanth K. Manikandan, Biswajit Das, Avijit Kundu, Raunak Dey, Ayan Banerjee, Supriya Krishnamurthy
Summary: This paper investigates finite-time measurements in a non-equilibrium steady state and finds that fluctuations below the average are more probable. This discrepancy is greater when the system is further from equilibrium. These effects can be explained by a nonmonotonic skewness of current fluctuations and are easily observable in experiments.
PHYSICAL REVIEW RESEARCH
(2022)
Article
Physics, Mathematical
Richard Kraaij, Alexandre Lazarescu, Christian Maes, Mark Peletier
JOURNAL OF STATISTICAL PHYSICS
(2018)
Article
Physics, Mathematical
Thibaut Demaerel, Christian Maes
JOURNAL OF STATISTICAL PHYSICS
(2018)
Article
Statistics & Probability
Richard C. Kraaij, Alexandre Lazarescu, Christian Maes, Mark Peletier
STOCHASTIC PROCESSES AND THEIR APPLICATIONS
(2020)
Article
Physics, Multidisciplinary
Thibaut Demaerel, Christian Maes
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2019)
Article
Mathematics, Applied
Christian Maes, Karel Netocny
Article
Mechanics
Christian Maes, Karel Netocny
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
(2019)
Article
Astronomy & Astrophysics
Thibaut Demaerel, Christian Maes, Ward Struyve
CLASSICAL AND QUANTUM GRAVITY
(2020)
Review
Physics, Multidisciplinary
Christian Maes
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2020)
Article
Physics, Mathematical
Faezeh Khodabandehlou, Christian Maes, Karel Netocny
Summary: In this paper, we use the method of local detailed balance to rewrite the Kirchhoff formula for stationary distributions of Markov jump processes. We introduce a physically interpretable tree-ensemble to describe the concept. By arborification of path-space integration, we derive a McLennan-tree characterization close to equilibrium and obtain response formula for the stationary distribution in the asymptotic regime of large driving. Graphical expressions of currents and traffic are obtained, allowing the study of various asymptotic regimes. We also demonstrate how the matrix-forest theorem provides a representation of quasi-potentials, which are used in computing excess work and heat in nonequilibrium thermal physics. Various examples are presented to illustrate and explain the graph elements and constructions.
JOURNAL OF STATISTICAL PHYSICS
(2022)
Article
Chemistry, Physical
Faezeh Khodabandehlou, Christian Maes, Karel Netocny
Summary: We discuss when and why the steady nonequilibrium heat capacity vanishes with temperature using general arguments and examples. The framework of Markov jump processes on finite connected graphs is used, where the condition of local detailed balance helps identify the heat fluxes, and the discreteness enables a nondegenerate stationary distribution at absolute zero. Additionally, a dynamic condition is needed for the nonequilibrium extension of the Third Law to ensure that the low-temperature dynamical activity and accessibility of the dominant state remain sufficiently high.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Physics, Fluids & Plasmas
Frantisek Slanina, Miroslav Kotrla, Karel Netocny
Summary: This study models the system of a driven dense colloid mixture in a tube with diameter comparable to particle size. By generalizing the asymmetric simple exclusion process (ASEP) model, the exclusion constraint is relaxed and two species of particles with different sizes and transport coefficients are considered. The nearest-neighbor correlations are calculated using a variant of the Kirkwood approximation, which provides accurate results compared to numerical simulations. However, the Kirkwood approximation is found to be useless for long-range correlations, as it predicts exponential decay while simulation data indicate algebraic decay.
Article
Mathematics, Applied
Christian Maes, Karel Netocny
MOSCOW MATHEMATICAL JOURNAL
(2020)
Article
Physics, Fluids & Plasmas
Yosyp A. Humenyuk, Miroslav Kotrla, Karel Netocny, Frantisek Slanina
