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Polarization effects in the production of antiprotons at the CERN PS beam line T11 at 3.5 GeV/c have been investigated within the P371 experiment. These effects, if found to be significant could provide a simple method to generate polarized…

High Energy Physics - Experiment · Physics 2025-10-02 M. Zielinski , D. Grzonka , G. Khatri , P. Kulessa , J. Ritman , T. Sefzick , J. Smyrski , V. Verhoeven , H. Xu

A ring structure fabricated from GaAs is used to achieve interference of the net spin polarization of conduction band electrons. Optically polarized spins are split into two packets by passing through two arms of the ring in the diffusive…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Y. K. Kato , R. C. Myers , A. C. Gossard , D. D. Awschalom

The influence has been studied of the ionization laser polarization on the effective temperature of an ultracold electron source, which is based on near-threshold photoionization. This source is capable of producing both high-intensity and…

Atomic Physics · Physics 2013-12-24 W. J. Engelen , D. J. Bakker , O. J. Luiten , E. J. D. Vredenbregt

A method for the generation of ultrarelativistic electron beams with high spin polarization is put forward, where a tightly-focused linearly-polarized ultraintense laser pulse interacts with a nonprepolarized transverse-size-tailored solid…

Plasma Physics · Physics 2024-06-11 Xiaofei Shen , Zheng Gong , Karen Z. Hatsagortsyan , Christoph H. Keitel

We present a method to create spin-polarized beams of ballistic electrons in a two-dimensional electron system in the presence of spin-orbit interaction. Scattering of a spin-unpolarized injected beam from a lithographic barrier leads to…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Hong Chen , J. J. Heremans , J. A. Peters , J. P. Dulka , A. O. Govorov , N. Goel , S. J. Chung , M. B. Santos

The electron induced production of positrons is a multi-parameter problem which combines elementary physics processes with complex collection systems. The optimization of this technique for 120~MeV and 1000~MeV electron beam kinetic…

Accelerator Physics · Physics 2024-01-10 Sami Habet , Andriy Ushakov , Eric Voutier

Spatially nonhomogeneously spin polarized nuclei are proposed as a new mechanism to monitor electron states in a nanostructure, or as a means to createn and, if necessary, reshape such nanostructures in the course of the experiment. We…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 V. Fleurov , V. A. Ivanov , F. M. Peeters , I. D. Vagner

The Stokes-parameter operators and the associated Poincare sphere, which describe the quantum-optical polarization properties of light, are defined and their basic properties are reviewed. The general features of the Stokes operators are…

Quantum Physics · Physics 2015-06-26 Natalia Korolkova , Gerd Leuchs , Rodney Loudon , Timothy C. Ralph , Christine Silberhorn

Compton scattering from the proton was investigated at s=6.9 (GeV/c)**2 and \t=-4.0 (GeV/c)**2 via polarization transfer from circularly polarized incident photons. The longitudinal and transverse components of the recoil proton…

Nuclear Experiment · Physics 2008-11-26 D. J. Hamilton , V. H. Mamyan , the Jefferson Lab Hall A Collaboration

We propose to use an internal polarized hydrogen storage cell gas target in the AD ring to determine for the first time the two total spin-dependent pbar-p cross sections sigma_1 and sigma_2 at antiproton beam energies in the range from 50…

Nuclear Experiment · Physics 2019-08-13 C. Barschel , U. Bechstedt , J. Dietrich , N. Dolfus , R. Engels , R. Gebel , H. Hadamek , J. Haidenbauer , C. Hanhart , A. Kacharava , G. Krol , M. Kueven , G. Langenberg , A. Lehrach , B. Lorentz , R. Maier , S. Martin , U. -G. Meissner , M. Nekipelov , N. N. Nikolaev , D. Oellers , G. d'Orsaneo , D. Prasuhn , F. Rathmann , M. Retzlaff , J. Sarkadi , R. Schleichert , H. Seyfarth , A. Sibirtsev , D. Spoelgen , H. J. Stein , H. Stockhorst , H. Stroeher , Chr. Weidemann , D. Welsch , P. Wieder , L. Barion , S. Bertelli , V. Carassiti , G. Ciullo , M. Contalbrigo , A. Cotta-Ramusino , P. F. Dalpiaz , A. Drago , G. Guidoboni , P. Lenisa , L. Pappalardo , G. Stancari , M. Stancari , M. Statera , T. Azarian , A. Kulikov , V. Kurbatov , G. Macharashvili , S. Merzliakov , I. N. Meshkov , A. Smirnov , D. Tsirkov , Yu. Uzikov , S. Barsov , S. Belostotski , K. Grigoryev , P. Kravtsov , M. Mikirtychiants , S. Mikirtychiants , A. Vasilyev , F. M. Esser , R. Greven , G. Hansen , F. Jadgfeld , F. Klehr , H. Soltner , H. Straatmann , D. Chiladze , A. Garishvili , N. Lomidze , D. Mchedlishvili , M. Nioradze , M. Tabidze , N. Akopov , A. Avetisyan , G. Elbakyan , H. Marukyan , S. Taroian , P. Benati , W. Erven , F. J. Kayser , H. Kleines , P. Wuestner , D. Bruncko , J. Ferencei , J. Musinsky , J. Urban , W. Augustyniak , B. Marianski , A. Trzcinski , P. Zupranski , S. Dymov , A. Nass , E. Steffens , K. Rathsman , P. E. Tegner , P. Thoerngren Engblom , R. De Leo , G. Tagliente , B. Kaempfer , S. Trusov , N. Buttimore , H. O. Meyer

We theoretically investigate a scattering configuration in Compton scattering, in which the orientation of the electron spin is reversed and simultaneously, the photon polarization changes from linear polarization into circular…

Quantum Physics · Physics 2017-12-11 Sven Ahrens , Chang-Pu Sun

We study ballistic transport through semiconductor quantum point contact systems under different confinement geometries and applied fields. In particular, we investigate how the {\em lateral} spin-orbit coupling, introduced by asymmetric…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Anh T. Ngo , P. Debray , Sergio Ulloa

Using a scheme based on a Mach-Zehnder interferometer, we propose an analysis of the superposition of polarized laser beams at a given angle. The focus of our study is the spatially varying polarization state of the resulting field, also…

Optics · Physics 2009-11-18 B. M. Rodriguez-Lara , I. Ricardez-Vargas

The dependence of the differential cross section and polarization observables in the $\bar N+N\to \pi +e^++e^-$ reaction on the polarizations of the proton target and antiproton beam (the produced electron may be unpolarized or…

Nuclear Theory · Physics 2015-06-05 G. I. Gakh , E. Tomasi-Gustafsson , A. Dbeyssi , A. G. Gakh

It is shown in the case of proton scattering on an electron gas target that the Closed Time Path formalism can handle final state interactions of the target in equilibrium in a simple and natural manner. The leading order cross section is…

High Energy Physics - Phenomenology · Physics 2013-06-18 F. Mansouri , J. Polonyi , K. Zazoua , N. Zekri

Unlike the two-terminal device, in which the time-reversal invariant spin-orbit interaction alone cannot polarize the spins, such a polarization can be generated when electrons from one source reservoir flow into two (or more) separate…

Mesoscale and Nanoscale Physics · Physics 2017-02-21 Shlomi Matityahu , Amnon Aharony , Ora Entin-Wohlman , Carlos A. Balseiro

It is shown that in organic semiconductors where organic magnetoresistance (OMAR) is observed, the exchange interaction between electrons and holes localized at different molecules leads to dynamic spin polarization in the direction of the…

Disordered Systems and Neural Networks · Physics 2022-04-06 A. V. Shumilin

The elastic scattering of twisted electrons by neutral atoms is studied within the fully relativistic framework. The electron-atom interaction is taken into account in all orders, thus allowing us to explore high-order effects beyond the…

Atomic Physics · Physics 2018-09-12 V. P. Kosheleva , V. A. Zaytsev , A. Surzhykov , V. M. Shabaev , Th. Stöhlker

A relativistic electron-positron beam propagating through a magnetized electron-ion plasma is shown to generate both circularly and linearly polarized synchrotron radiation. The degrees of circular and linear polarizations depend both on…

Plasma Physics · Physics 2019-05-29 Ujjwal Sinha , Christoph H. Keitel , Naveen Kumar

Generation of ultrarelativistic polarized leptons during interaction of an ultrarelativistic electron beam with a counterpropagating ultraintense laser pulse is investigated in the quantum radiation-dominated domain. While the symmetry of…

High Energy Physics - Phenomenology · Physics 2023-08-16 Kai-Hong Zhuang , Yue-Yue Chen , Yan-Fei Li , Karen Z. Hatsagortsyan , Christoph H. Keitel