Results 141 to 150 of about 267,886 (283)

Statistics of work and fluctuation theorems for microcanonical initial states

open access: yesNew Journal of Physics, 2013
Work performed on a system in a microcanonical state by changes in a control parameter is characterized in terms of its statistics. The transition probabilities between eigenstates of the system Hamiltonians at the beginning and the end of the parameter ...
Peter Talkner   +3 more
doaj   +1 more source

Fluctuation theorems for stochastic interacting particle systems

open access: yes, 2014
Fluctuation theorems such as the Gallavotti - Cohen theoremor the Jarzynski relation make use of time reversal to establish a symmetry property of the large deviation function and make predictions about entropy production in many-body systems with non ...
Harris, R. J.   +2 more
core  

Combinatorial Survey of Structural Phase Distribution and Magnetism in Fe‐Ge‐Te Composition‐Spread Thin Film Libraries

open access: yesAdvanced Electronic Materials, EarlyView.
ABSTRACT Magnetic 2‐dimensional (2D) van der Waals (vdW) materials have garnered tremendous attention. The vdW ferromagnet Fe5Ge1Te2 has a Curie temperature Tc of ≈ 270 K, which is tailorable by tuning the stoichiometry and the Fe deficiency to reach room temperature.
Chih‐Yu Lee   +7 more
wiley   +1 more source

Introducing one-shot work into fluctuation relations

open access: yesNew Journal of Physics, 2015
Two approaches to small-scale and quantum thermodynamics are fluctuation relations and one-shot statistical mechanics. Fluctuation relations (such as Crooks’ theorem and Jarzynski's equality) relate nonequilibrium behaviors to equilibrium quantities such
Nicole Yunger Halpern   +3 more
doaj   +1 more source

Deformed Jarzynski Equality

open access: yesEntropy, 2017
The well-known Jarzynski equality, often written in the form e − β Δ F = 〈 e − β W 〉 , provides a non-equilibrium means to measure the free energy difference Δ F of a system at the same inverse temperature β based on an ...
Jiawen Deng   +3 more
doaj   +1 more source

Perspective: Quantum Computing on Magnetic Racetrack

open access: yesAdvanced Electronic Materials, EarlyView.
Magnetic domain walls emerge as mobile qubits on quantum racetracks, where chirality encodes quantum information and current‐driven motion enables flying‐qubit functionality. This Perspective outlines the physical principles, gate mechanisms, material requirements, and experimental roadmap for realizing scalable quantum computing with magnetic textures,
Ji Zou, Jelena Klinovaja, Daniel Loss
wiley   +1 more source

Fluctuation-dissipation theorems in an expanding universe

open access: yes, 2007
International audienceThe recently constructed minimal extension of the special relativistic Ornstein-Uhlenbeck process to curved space-time cannot be used to model realistically diffusions on cosmological scales because it does not take into account the
C. Chevalier   +3 more
core   +1 more source

Prediction of Structural Stability of Layered Oxide Cathode Materials: Combination of Machine Learning and Ab Initio Thermodynamics

open access: yesAdvanced Energy Materials, EarlyView.
In this work, we developed a phase‐stability predictor by combining machine learning and ab initio thermodynamics approaches, and identified the key factors determining the favorable phase for a given composition. Specifically, a lower TM ionic potential, higher Na content, and higher mixing entropy favor the O3 phase.
Liang‐Ting Wu   +6 more
wiley   +1 more source

Pricing Dynamics in the US Hemp Market: A Vertical Price Transmission Analysis of the Hemp Value Chain

open access: yesAgribusiness, EarlyView.
ABSTRACT The US hemp market is a new and nascent industry that has been devoid of research for about half a century. This study examined the effects of exogenous shock on price at each phase of the value chain—Farm (hemp biomass), and its impact on prices at other phases of the value chain—Intermediary Processor (crude cannabidiol hemp) and Final ...
Solomon Odiase   +2 more
wiley   +1 more source

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