Results 1 to 10 of about 1,590,564 (275)
Fluctuation theorems: Work is not an observable [PDF]
, 2007 The characteristic function of the work performed by an external time-dependent force on a Hamiltonian quantum system is identified with the time-ordered correlation function of the exponentiated system's Hamiltonian. A similar expression is obtained for
C. Jarzynski +4 more
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A Complexity-Based Approach to Quantum Observable Equilibration [PDF]
EntropyWe investigate the role of a statistical complexity measure to assign equilibration in isolated quantum systems. While unitary dynamics preserve global purity, expectation values of observables often exhibit equilibration-like behavior, raising the ...
Marcos G. Alpino +3 more
doaj +2 more sources
Quantum scrambling of observable algebras [PDF]
Quantum, 2022 In this paper we describe an algebraic/geometrical approach to quantum scrambling. Generalized quantum subsystems are described by an hermitian-closed unital subalgebra $\cal A$ of operators evolving through a unitary channel.
Paolo Zanardi
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A Quantum Expectation Value Based Language Model with Application to Question Answering
Entropy, 2020 Quantum-inspired language models have been introduced to Information Retrieval due to their transparency and interpretability. While exciting progresses have been made, current studies mainly investigate the relationship between density matrices of ...
Qin Zhao +4 more
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Observable Reputation Trading [PDF]
, 2006 Is the reputation of a firm tradable when the change in ownership is observable? We consider a competitive market in which a share of owners must retire in each period. New owners bid for the firms that are for sale.
Hakenes, Hendrik, Peitz, Martin
core +5 more sources
Modeling and Simulation of GNSS-R Observables With Effects of Swell
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 Global navigation satellite system-reflectometry (GNSS-R) has attracted much attention in remote sensing, such as sea wind speed detection, soil moisture, and sea ice.
Bowen Li +4 more
doaj +1 more source
Partially observable Szilárd engines
New Journal of Physics, 2022 Almost a century ago, Leo Szilárd replaced Maxwell’s ‘demon’ by machinery. The resulting information engine concept laid the foundation for studying the physical nature of information. Szilárd reduced the demon’s role to mapping an observable onto a work
Susanne Still, Dorian Daimer
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Synchronous globally observable ultrashort-period pulses
Solar-Terrestrial Physics, 2022 We have studied the properties of impulsive geomagnetic disturbances, which are observed synchronously at the network of induction magnetometers of the Institute of Solar-Terrestrial Physics (ISTP SB RAS) and Canadian stations of the CARISMA project ...
Marchuk R. A. +2 more
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Key observable for linear thermalization
Physical Review Research, 2023 For studies on thermalization of an isolated quantum many-body system, the fundamental issue is to determine whether a given system thermalizes or not.
Yuuya Chiba, Akira Shimizu
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Confined space physiological fatigue measurement based on photoplethysmography pulse wave signal
工程科学学报, 2018 Confined spaces are extremely common in industrial production and emergency rescue situations, and are also widely found in the fields of mining, chemistry, metallurgy, construction, aviation, submarines, emergency hedging, and others.
YU Lu +4 more
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