中文
相关论文

相关论文: Entropy Increasing Numerical Methods for Predictio…

200 篇论文

Fluid dynamics accompanies with the entropy production thus increases the local temperature, which plays an important role in charged systems such as the ion channel in biological environment and electrodiffusion in capacitors/batteries. In…

流体动力学 · 物理学 2017-11-09 Pei Liu , Simo Wu , Chun Liu

This is the continuation of cond-mat/0505084. Elementary formulas are derived for the flow of entropy through a circuit junction in a near-critical quantum circuit, based on the structure of the energy-momentum tensor at the junction. The…

统计力学 · 物理学 2019-02-01 Daniel Friedan

In this work, we design an entropy stable, finite volume approximation for the ideal magnetohydrodynamics (MHD) equations. The method is novel as we design an affordable analytical expression of the numerical interface flux function that…

数值分析 · 数学 2015-10-01 Andrew R. Winters , Gregor J. Gassner

The irreversible currents and entropy production rate of a dilute colloidal suspension are calculated using the linear irreversible thermodynamics and the linear response theory. The \anomalous" or \hidden" entropy recently discussed in the…

统计力学 · 物理学 2018-08-24 Kunimasa Miyazaki , Yohei Nakayama , Hiromichi Matsuyama

We present a new methodology for the characterization of the metric entropy of infinite-dimensional ellipsoids with exponentially decaying semi-axes. This procedure does not rely on the explicit construction of coverings or packings and…

泛函分析 · 数学 2024-05-21 Thomas Allard , Helmut Bölcskei

Phase diagrams exhibiting extended solid-solution and lens-like melting are often reproduced using ideal solutions, where ideal mixing considers a fully random configurational entropy of mixing. In the field of irreversible thermodynamics,…

材料科学 · 物理学 2024-02-06 Jonathan Paras , Antoine Allanore

As remarked by Boltzmann, the Second Law of Thermodynamics is notable for the fact that it is readily proved using elementary statistical arguments, but becomes harder and harder to verify the more precise the microscopic description of a…

量子物理 · 物理学 2026-04-03 Marco A. Jimenez-Valencia , Charles A. Stafford

The steepest-entropy-ascent quantum thermodynamic framework is used to investigate the effectiveness of multi-chain polyethyleneimine-methylenephosphonic acid in sequestering rare-earth ions (Eu$^{+3}$) from aqueous solutions. The framework…

软凝聚态物质 · 物理学 2023-11-02 Jared McDonald , Michael R. von Spakovsky , William T. Reynolds

Atmospheric systems incorporating thermal dynamics must be stable with respect to both energy and entropy. While energy conservation can be enforced via the preservation of the skew-symmetric structure of the Hamiltonian form of the…

数值分析 · 数学 2023-10-31 Kieran Ricardo , David Lee , Kenneth Duru

Algorithmic cooling is a novel technique to generate ensembles of highly polarized spins, which could significantly improve the signal strength in Nuclear Magnetic Resonance (NMR) spectroscopy. It combines reversible (entropy-preserving)…

An elementary collision model of a molecular reservoir is considered upon which an external field is applied and the work is dissipated into heat. To realize macroscopic irreversibility at the microscopic level, we introduce a ``graceful''…

量子物理 · 物理学 2007-05-23 Lajos Diósi , Tova Feldmann , Ronnie Kosloff

The efficiency of a feedback mechanism depends on the precision of the measurement outcomes obtained from the controlled system. Accordingly, measurement errors affect the entropy production in the system. We explore this issue in the…

统计力学 · 物理学 2013-05-29 T. Munakata , M. L. Rosinberg

In calorimetry and particularly in heat capacity measurements, different characteristic relaxation time constants may perturb the experiment which cannot be considered at thermodynamic equilibrium. In this case, thermodynamics of…

其他凝聚态物理 · 物理学 2007-06-29 Jean-Luc Garden , Jacques Richard

Quantum thermodynamics has emerged as a central field for understanding how energy conversion processes occur in microscopic systems. In these systems, effects such as coherence, entanglement, and non-Markovianity play key roles. In this…

量子物理 · 物理学 2025-12-02 J. M. Z. Choquehuanca

Despite increasing demands for the thermodynamic data of liquids in a wide range of science and engineering fields, there is a still a considerable lack of reliable data over a wide range of temperature ($T$) and pressure conditions. The…

无序系统与神经网络 · 物理学 2024-11-19 Koun Shirai , Hiroyoshi Momida , Kazunori Sato , Sangil Hyun

For an isolated assembly that comprises a system and its surrounding reservoirs, the total entropy ($S_{a}$) always monotonically increases as time elapses. This phenomenon is known as the second law of thermodynamics ($S_{a}\geq0$). Here…

计算物理 · 物理学 2014-10-22 T. M. Shih , Z. J. Gao , H. Merlitz , L. Rondoni , P. J. Pagni , Z. Chen

Structure-preserving finite-difference schemes for general nonlinear fourth-order parabolic equations on the one-dimensional torus are derived. Examples include the thin-film and the Derrida-Lebowitz-Speer-Spohn equations. The schemes…

数值分析 · 数学 2020-01-14 Marcel Braukhoff , Ansgar Jüngel

Estimating vibrational entropy is a significant challenge in thermodynamics and statistical mechanics due to its reliance on quantum mechanical properties. This paper introduces a quantum algorithm designed to estimate vibrational entropy…

量子物理 · 物理学 2025-11-25 Shangjie Guo , Corneliu Buda , Nathan Wiebe

An efficient technique to generate ensembles of spins that are highly polarized by external magnetic fields is the Holy Grail in Nuclear Magnetic Resonance (NMR) spectroscopy. Since spin-half nuclei have steady-state polarization biases…

量子物理 · 物理学 2007-05-23 Jose M. Fernandez , Seth Lloyd , Tal Mor , Vwani Roychowdhury

The deep connection between entropy and information is discussed in terms of both classical and quantum physics. The mechanism of information transfer between systems via entanglement is explored in the context of decoherence theory. The…

量子物理 · 物理学 2021-01-05 Martin Paul Vaughan