Results 101 to 110 of about 107,786 (317)

Trajectory Class Fluctuation Theorem

open access: yesJournal of Statistical Physics
Abstract The Trajectory Class Fluctuation Theorem (TCFT) presents equalities between thermodynamic quantities, such as work costs and free energy changes, and the probabilities of classes of system-state trajectories in equilibrium-steady-state nonequilibrium processes.
Gregory Wimsatt   +2 more
openaire   +2 more sources

Waveguide Photoactuators: Materials, Fabrication, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi   +4 more
wiley   +1 more source

Dynamic Evolution Analysis of Stock Price Fluctuation and Its Control

open access: yesComplexity, 2018
This paper studies a simple dynamical system of stock price fluctuation time series based on the rule of stock market. When the stock price fluctuation system is disturbed by external excitations, the system exhibits obviously chaotic phenomena, and its ...
Yuhua Xu   +3 more
doaj   +1 more source

Positive- and negative-frequency noise from an ensemble of two-level fluctuators

open access: yesPhysical Review Research, 2021
The analysis of charge noise based on the Bloch-Redfield treatment of an ensemble of dissipative two-level fluctuators generally results in a violation of the fluctuation-dissipation theorem.
Xinyuan You, Aashish A. Clerk, Jens Koch
doaj   +1 more source

Nonequilibrium identities and response theory for dissipative particles [PDF]

open access: yes, 2013
We derive some nonequilibrium identities such as the integral fluctuation theorem and the Jarzynski equality starting from a nonequilibrium state for dissipative classical systems.
Hayakawa, Hisao, Otsuki, Michio
core   +2 more sources

Quantum Bochkov–Kuzovlev work fluctuation theorems [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2011
The quantum version of the Bochkov–Kuzovlev identity is derived on the basis of the appropriate definition of work as the difference of the measured internal energies of a quantum system at the beginning and the end of an external action on the system given by a prescribed protocol.
Campisi, Michele   +2 more
openaire   +3 more sources

Consensus Formation and Change are Enhanced by Neutrality

open access: yesAdvanced Science, EarlyView.
Neutral agents are shown to enhance both the formation and overturning of consensus in collective decision‐making. A general mathematical model and experiments with locusts and humans reveal that neutrality enables robust consensus via simple interactions and accelerates consensus change by reducing effective population size.
Andrei Sontag   +3 more
wiley   +1 more source

Fluctuation Theorems for a Quantum Channel

open access: yesPhysical Review X, 2019
We establish the general framework of quantum fluctuation theorems by finding the symmetry between the forward and backward transitions of any given quantum channel.
Hyukjoon Kwon, M. S. Kim
doaj   +1 more source

Computing Equilibrium Free Energies Using Non-Equilibrium Molecular Dynamics

open access: yesEntropy, 2013
As shown by Jarzynski, free energy differences between equilibrium states can be expressed in terms of the statistics of work carried out on a system during non-equilibrium transformations.
Christoph Dellago, Gerhard Hummer
doaj   +1 more source

Onsager-Machlup theory for nonequilibrium steady states and fluctuation theorems

open access: yes, 2006
A generalization of the Onsager-Machlup theory from equilibrium to nonequilibrium steady states and its connection with recent fluctuation theorems are discussed for a dragged particle restricted by a harmonic potential in a heat reservoir.
A. Einstein   +60 more
core   +1 more source

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