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The stability of two entangled spins dressed by electrons is studied by calculating the scattering phase shifts. The interaction between electrons is interpreted by fully relativistic QED and the screening effect is described…

量子物理 · 物理学 2007-09-05 Hai-Jhun Wanng , W. T. Geng

We study shot noise for entangled electrons in a 4-lead beam-splitter with one incoming lead driven by adiabatically rotating magnetic fields. We propose a setup of an adiabatically rotating magnetic field therefor, which is appropriate for…

介观与纳米尺度物理 · 物理学 2007-05-23 Hui Zhao , Xuean Zhao , You-Quan Li

A system consisting of two neutral spin 1/2 particles is analyzed for two magnetic field perturbations: 1) an inhomogeneous magnetic field over all space, and 2) external fields over a half space containing only one of the particles. The…

量子物理 · 物理学 2018-06-06 Yakir Aharonov , Jeeva Anandan , G. Jordan Maclay , Jun Suzuki

We consider a scattering set-up with an entangler and beam splitter where the current noise exhibits bunching behavior for electronic singlet states and antibunching behavior for triplet states. We show that the entanglement of two…

介观与纳米尺度物理 · 物理学 2022-09-21 Eugene V. Sukhorukov , Daniel Loss , Guido Burkard

Quantum entanglement is a cornerstone of quantum mechanics. While the entanglement of confined electron pairs has been established early on, the entanglement of free-traveling electron pairs, particularly at high energies, remains largely…

高能物理 - 唯象学 · 物理学 2025-06-24 Leyun Gao , Alim Ruzi , Qite Li , Chen Zhou , Qiang Li

Entanglement of spins is analyzed for two electrons extracted from a mixed many electron state by projecting onto the two-electron subspace. The concurrence formulae are expressed in a compact form for states with a well defined square of…

介观与纳米尺度物理 · 物理学 2015-05-13 A. Ramsak , J. Mravlje , T. Rejec , A. Lautar

We investigate the spin correlations between electron-positron pairs created from a photon when it scatters in a high-intensity laser pulse via the nonlinear Breit-Wheeler process. We find that the spin states of the generated…

高能物理 - 唯象学 · 物理学 2025-04-10 S. Tang , B. M. Dillon , B. King

We present a novel study of the time evolutions of entangled states of three spin-1/2 particles in the presence of a constant external magnetic field, which causes the individual spins to precess and leads to remarkable periodicities in the…

量子物理 · 物理学 2010-04-29 Amitabha Chakrabarti , Anirban Chakraborti

Two positive mass, spin $\frac 12$ particles created in an entangled state are studied in the presence of a constant magnetic field inducing distinct precessions, depending on the respective momenta, of the two spins. The charge and…

高能物理 - 理论 · 物理学 2014-11-18 A. Chakrabarti

In moderately strong magnetic fields, the difference in Lande g-factors in each of the dots of a coupled double quantum dot device may induce oscillations between singlet and triplet states of the entangled electron pair and lead to a…

介观与纳米尺度物理 · 物理学 2009-11-11 Yuri A. Serebrennikov

This work aims to study theoretically the electron-proton scattering for initially spin-polarized electrons in the presence of a circularly polarized electromagnetic field. Using the first Born approximation and the Dirac-Volkov states for…

高能物理 - 唯象学 · 物理学 2022-07-13 I. Dahiri , M. Baouahi , M. Jakha , S. Mouslih , B. Manaut , S. Taj

The present work theoretically investigates the probability of generation of entangled electron-photon pair in high-energy Compton scattering of unpolarized electrons and photons due to scattering-channel-exchange mechanism. The study…

量子物理 · 物理学 2021-06-15 Basudev Nag Chowdhury , Sanatan Chattopadhyay

We study the entanglement of magnetic impurities in an environment of electrons through successive scattering while an external magnetic field is applied. We show that the dynamics of the problem can be approximately described by a reduced…

强关联电子 · 物理学 2014-12-10 Alexandros Metavitsiadis , Raoul Dillenschneider , Sebastian Eggert

We study the spin polarization of mixed and entangled electron states in a four probe/beam splitter geometry with local Rashba and Dresselhaus interactions. A pair of maximally entangled electrons collides with the beam splitter and enters…

量子物理 · 物理学 2012-12-04 Luis A. González-Árraga , Bertrand Berche , Ernesto Medina

We study how two magnetic impurities embedded in a solid can be entangled by an injected electron scattering between them and by subsequent measurement of the electron's state. We start by investigating an ideal case where only the…

量子物理 · 物理学 2007-05-23 A. T. Costa , S. Bose , Y. Omar

Detailed analysis of behavior of spin-entangled particle pairs under arbitrary rotations in their Hilbert space has been performed. It shows a rich range of varieties (faces) of entanglement in different bases. Analytic criteria are…

量子物理 · 物理学 2019-01-03 Moses Fayngold

A physically transparent and mathematically simple semiclassical model is employed to examine dynamics in the central-spin problem. The results reproduce a number of previous findings obtained by various quantum approaches and, at the same…

介观与纳米尺度物理 · 物理学 2015-03-31 Tomasz Dietl

We show influence of electric field and magnetic flux on spin entanglement in an artificial triangular molecule build of coherently coupled quantum dots. In a subspace of doublet states an explicit relation of concurrence with spin…

介观与纳米尺度物理 · 物理学 2015-06-04 Jukub Luczak , Bogdan R. Bulka

We propose a scheme based on using the singlet ground state of an electron spin pair in a double quantum dot nanostructure as a suitable set-up for detecting entanglement between electron spins via the measurement of an optimal entanglement…

介观与纳米尺度物理 · 物理学 2009-11-11 M. Blaauboer , D. P. DiVincenzo

Electron wave function entanglement and spin reconfiguration as source of electron correlation are investigated. Properties of correlation function are shown to have the best concordance with experimental data under supposition that…

量子物理 · 物理学 2007-05-23 V O Hnatovsky , C V Usenko
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