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相关论文: Enzyme as Maxwell's Demon: Steady-state Deviation …

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The gedanken experiment of Maxwell's demon has led to the studies concerning the foundations of thermodynamics and statistical mechanics. The demon measures fluctuations of a system's observable and converts the information gain into work…

量子物理 · 物理学 2018-05-09 Y. Masuyama , K. Funo , Y. Murashita , A. Noguchi , S. Kono , Y. Tabuchi , R. Yamazaki , M. Ueda , Y. Nakamura

Electro-energy-reaction-diffusion systems are thermodynamically consistent continuum models for reaction-diffusion processes that account for temperature and electrostatic effects in a way that total charge and energy are conserved. The…

偏微分方程分析 · 数学 2026-04-09 Katharina Hopf , Michael Kniely , Alexander Mielke

With the increasing interest for the control of the system at the nano and mesoscopic scales, studies have been focused on the limit of the energy dissipation in an open system by refining the concept of the Maxwell's demon. The well-known…

统计力学 · 物理学 2020-08-26 Qian Zeng , Jin Wang

We study the role of active coupling on the transport properties of homogeneously charged macromolecules in an infinitely dilute solution. An enzyme becomes actively bound to a segment of the macromolecule, exerting an electrostatic force…

软凝聚态物质 · 物理学 2024-05-24 Tapas Singha , Siao-Fong Li , Murugappan Muthukumar

In apparent contradiction to the laws of thermodynamics, Maxwell's demon is able to cyclically extract work from a system in contact with a thermal bath exploiting the information about its microstate. The resolution of this paradox…

The dissociation of excited electron-hole pairs is a microscopic process that is fundamental to the performance of photovoltaic systems. For this process to be successful, the oppositely charged electron and hole must overcome an…

介观与纳米尺度物理 · 物理学 2017-08-14 Liang Shi , Chee Kong Lee , Adam P. Willard

A growing amount of evidence points to the fact that many enzymes exhibit fluctuations in their catalytic activity, which are associated with conformational changes on a broad range of timescales. The experimental study of this phenomenon,…

定量方法 · 定量生物学 2017-07-28 Ankit Gupta , Andreas Milias-Argeitis , Mustafa Khammash

The Landauer principle states that decrease in entropy of a system, inevitably leads to a dissipation of heat to the environment. This statement is usually established by considering the system to be in contact with an environment that is…

量子物理 · 物理学 2024-10-18 Sayan Mondal , Aparajita Bhattacharyya , Ahana Ghoshal , Ujjwal Sen

Maxwell refrigerator as a device that can transfer heat from a cold to hot temperature reservoir making use of information reservoir was introduced by Mandal et al. \cite{Mandal2013a}. The model has a two state demon and a bit stream…

统计力学 · 物理学 2021-02-24 Toby Joseph , Kiran V

Theoretical analysis, which maps single molecule time trajectories of a molecular motor onto unicyclic Markov processes, allows us to evaluate the heat dissipated from the motor and to elucidate its dependence on the mean velocity and…

亚细胞过程 · 定量生物学 2017-04-05 Wonseok Hwang , Changbong Hyeon

The electric dipole moment (EDM) is a very sensitive probe of CP violation beyond the standard model, and it as been measured in many systems such as atoms, neutrons, etc. The EDM of composite systems may be sensitive to several elementary…

高能物理 - 唯象学 · 物理学 2019-02-05 Nodoka Yamanaka

It is well known in enzyme kinetics that the Michaelis-Menten (MM) equation is applicable only to enzymes in the steady state. We show that the result obtained in the previous work [Phys. Rev. Lett. 107, 218301 (2011)] is inconsistent with…

生物物理 · 物理学 2017-10-11 In-Chun Jeong , Sanggeun Song , Daehyun Kim , Seong Jun Park , Ji-Hyun Kim , Jaeyoung Sung

Enzymes have been shown to diffuse faster in the presence of their reactants. Recently, we revealed new insights into this process of enhanced diffusion using single-particle tracking (SPT) with total internal reflection fluorescence (TIRF)…

生物物理 · 物理学 2021-01-01 Mengqi Xu , W. Benjamin Rogers , Wylie W. Ahmed , Jennifer L. Ross

Upon melting, the molecules in the crystal explore numerous configurations, reflecting an increase in disorder. The molar entropy of disorder can be defined by Bolzmann's formula dSd = Rln(Wd) where Wd is the increase in the number of…

Supported by a kinetic simulation, we derive an exclusion energy parameter $\cal{E}_X$ providing a lower kinetic energy bound for an electron to cross from one inflow region to the other during magnetic reconnection. As by a Maxwell Demon,…

We argue that the Maxwellian approximation can essentially underestimate the rates of some nuclear reactions in hot plasma under conditions very close to thermal equilibrium. This phenomenon is demonstrated explicitly on the example of…

等离子体物理 · 物理学 2009-11-13 Makoto Nakamura , Victor T. Voronchev , Yasuyuki Nakao

Previously, it was predicted that the parity-violating energy difference (PVED) between enantiomers and the molecular electron chirality (MEC), which is the integrated value of the electron chirality density over the entire molecule are…

化学物理 · 物理学 2024-10-30 Naoya Kuroda , Masato Senami

The effects of electromagnetic fields (EMF) have been widely debated concerning their role in chemical reactions. Reactions usually took hours or days to complete, and have been shown to happen a thousand times faster using EMF radiations.…

化学物理 · 物理学 2022-11-30 Kelvin Dsouza , Daryoosh Vashaee

Inspired by problems in biochemical kinetics, we study statistical properties of an overdamped Langevin process whose friction coefficient depends on the state of a similar, unobserved process. Integrating out the latter, we derive the long…

统计力学 · 物理学 2009-08-13 Golan Bel , Ilya Nemenman

Diffusion models currently dominate the field of data-driven image synthesis with their unparalleled scaling to large datasets. In this paper, we identify and rectify several causes for uneven and ineffective training in the popular ADM…

计算机视觉与模式识别 · 计算机科学 2024-03-21 Tero Karras , Miika Aittala , Jaakko Lehtinen , Janne Hellsten , Timo Aila , Samuli Laine