Results 31 to 40 of about 57,596 (307)

Spin-dependent transport of interacting electrons in mesoscopic systems [PDF]

open access: yes, 2007
Spin-dependent electronic transport properties of mesoscopic systems are studied using the nonequilibrium Green function formalism. In the first part we examine the influence of short-range electron-electron interactions on the conductance of quantum ...
Laßl, Andreas
core   +1 more source

Extreme Quantum Advantage when Simulating Classical Systems with Long-Range Interaction

open access: yesScientific Reports, 2017
Classical stochastic processes can be generated by quantum simulators instead of the more standard classical ones, such as hidden Markov models. One reason for using quantum simulators has recently come to the fore: they generally require less memory ...
Cina Aghamohammadi   +2 more
doaj   +1 more source

Absolutely classical spin states [PDF]

open access: yes, 2017
6 pages, 1 figureInternational audienceWe introduce the concept of "absolutely classical" spin states, in analogy to absolutely separable states of bi-partite quantum systems. Absolutely classical states are states that remain classical under any unitary
Braun, D.   +2 more
core   +3 more sources

The Logic of Quantum Mechanics Derived from Classical General Relativity [PDF]

open access: yes, 1997
For the first time it is shown that the logic of quantum mechanics can be derived from Classical Physics. An orthomodular lattice of propositions, characteristic of quantum logic, is constructed for manifolds in Einstein's theory of general relativity. A
Hadley, Mark J.
core   +2 more sources

Evolution of Spin-Orbital Entanglement with Increasing Ising Spin-Orbit Coupling

open access: yesCondensed Matter, 2020
Several realistic spin-orbital models for transition metal oxides go beyond the classical expectations and could be understood only by employing the quantum entanglement.
Dorota Gotfryd   +3 more
doaj   +1 more source

Quantum spin dynamics in external classical fields [PDF]

open access: yesEPJ Web of Conferences, 2019
We study the quantum and classical dynamics of spinning particles in the framework of the general-relativistic covariant Dirac theory. The exact Foldy-Wouthuysen transformation for the most general case of a fermion in arbitrary configurations of the ...
Obukhov Yuri N.   +2 more
doaj   +1 more source

Spin-electric coupling in quantum dots and molecular magnets [PDF]

open access: yes, 2011
In this thesis we study several aspects related to the dynamics of electrons and holes in quantum dots, as well as dynamics of electron spins in molecular magnets.
Trif, Mircea
core   +1 more source

The Classical Origin of Spin: Vectors Versus Bivectors

open access: yesAxioms
There are two ways of linearizing the Klein–Gordon equation: Dirac’s choice, which introduces a matter–antimatter pair, and a second approach using a bivector, which Dirac did not consider.
Bryan Sanctuary
doaj   +1 more source

Spin and thermal conductivity in a classical disordered spin chain [PDF]

open access: yesPhysical Review B, 2015
5 pages, 5 ...
Jenčič, Boštjan, Prelovšek, Peter
openaire   +2 more sources

Classical aspect of spin angular momentum in geometric quantum mechanics [PDF]

open access: yes
Geometric Quantum Mechanics is a formulation demonstrating how quantum theory may be cast in the language of Hamiltonian phase-space dynamics. Within this framework, the classical properties of spin ½, spin 1 and spin 3/2 particles have been studied. The
Umair, H.   +3 more
core   +1 more source

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