Results 1 to 10 of about 764,775 (174)
On the observable conditions in the nonlinear systems [PDF]
Vietnam Journal of Mechanics, 1979 None
Nguyen Thanh Bang
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
doaj +1 more source
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
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
doaj +1 more source
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
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Some Consequences of the Thermodynamic Cost of System Identification
Entropy, 2018 The concept of a “system” is foundational to physics, but the question of how observers identify systems is seldom addressed. Classical thermodynamics restricts observers to finite, finite-resolution observations with which to identify the ...
Chris Fields
doaj +1 more source
Observable and Unobservable Mechanical Motion
Entropy, 2020 A thermodynamic approach to mechanical motion is presented, and it is shown that dissipation of energy is the key process through which mechanical motion becomes observable. By studying charged particles moving in conservative central force fields, it is
J. Gerhard Müller
doaj +1 more source