English
Related papers

Related papers: Effective polarization in proton-induced $\alpha$ …

200 papers

We compute the excitation function of the global $\Lambda$ polarization in semicentral heavy-ion collisions within a Core--Corona framework, where the interaction region is described as a dense core and a dilute corona separated by a…

High Energy Physics - Phenomenology · Physics 2026-04-10 Alejandro Ayala , José Jorge Medina Serna , Isabel Domínguez , María Elena Tejeda-Yeomans

We have developed a novel technique for detection of spin polarization with a quantum dot weakly coupled to the objective device. The disturbance to the object in this technique is very small since the detection is performed through…

Mesoscale and Nanoscale Physics · Physics 2016-12-21 Sunwoo Kim , Yoshiaki Hashimoto , Taketomo Nakamura , Shingo Katsumoto

We demonstrate dynamical nuclear spin polarization in the absence of an external magnetic field, by resonant circularly polarized optical excitation of a single electron or hole charged quantum dot. Optical pumping of the electron spin…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 C. W. Lai , P. Maletinsky , A. Badolato , A. Imamoglu

An analytical study of the charged particle dynamics in the presence of an elliptically polarized electromagnetic wave and a uniform axial magnetic field, is presented. It is found that for $g\omega_{0}/ \omega' = \pm 1$, maximum energy…

Plasma Physics · Physics 2023-12-12 Shivam Kumar Mishra , Sarveshwar Sharma , Sudip Sengupta

We demonstrate a new method for electrical manipulation of nuclear spins utilizing dynamic nuclear polarization induced by quantum Hall effect breakdown. Nuclear spins are polarized and detected through the hyperfine interaction between a…

Mesoscale and Nanoscale Physics · Physics 2009-04-17 Minoru Kawamura , Hiroyuki Takahashi , Yoshiaki Hashimoto , Shingo Katsumoto , Tomoki Machida

Optically-pumped color centers in semiconductor powders can potentially induce high levels of nuclear spin polarization in surrounding solids or fluids at or near ambient conditions, but complications stemming from the random orientation of…

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…

High Energy Physics - Phenomenology · Physics 2022-07-13 I. Dahiri , M. Baouahi , M. Jakha , S. Mouslih , B. Manaut , S. Taj

Resonant laser scattering along with photon correlation measurements have established the atom-like character of quantum dots. Here, we present measurements which challenge this identification for a wide range of experimental parameters:…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 C. Latta , A. Högele , Y. Zhao , A. N. Vamivakas , P. Maletinsky , M. Kroner , J. Dreiser , I. Carusotto , A. Badolato , D. Schuh , W. Wegscheider , M. Atature , A. Imamoglu

Dynamic Nuclear Polarization (DNP) presently stands as the preferred strategy to enhance the sensitivity of nuclear magnetic resonance measurements, but its application relies on the use of high-frequency microwave to manipulate electron…

Mesoscale and Nanoscale Physics · Physics 2022-02-02 Carlos A. Meriles , Pablo R. Zangara

We consider the polarization behaviour of radio waves propagating through an ultrarelativistic highly magnetized electron-positron plasma in a pulsar magnetosphere. The rotation of magnetosphere gives rise to the wave mode coupling in the…

Astrophysics · Physics 2009-10-31 Y. E. Lyubarskii , S. A. Petrova

The reaction mechanism of pre-equilibrium proton-induced $\alpha $-particle emission from 93Nb at an incident energy of 100 MeV was investigated with polarized projectiles. A formalism based on the statistical multistep direct emission…

Nuclear Theory · Physics 2015-06-22 S. S. Dimitrova , A. A. Cowley , E. V. Zemlyanaya , K. V. Lukyanov

Here, we demonstrate the radiative polarization of high-energy electron beams in collisions with ultrashort pulsed bi-chromatic laser fields. Employing a Boltzmann kinetic approach for the electron distribution allows us to simulate the…

Plasma Physics · Physics 2019-12-06 Daniel Seipt , Dario Del Sorbo , Christopher P. Ridgers , Alec G. R. Thomas

Spin polarized states in neutron matter at a strong magnetic field are considered in the model with the Skyrme effective interaction (SLy4, SLy7 parametrizations). Analyzing the self-consistent equations at zero temperature, it is shown…

Nuclear Theory · Physics 2009-12-28 A. A. Isayev , J. Yang

The spin polarization of heavy quarks in heavy-ion collisions at the LHC is estimated from effective field theories (EFTs). One EFT is similar to the HQET used at zero temperature. This gives a coupling of the heavy quark spin to colour and…

High Energy Physics - Phenomenology · Physics 2023-07-25 Sourendu Gupta

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

Absorptive corrections, known to suppress proton-neutron transitions with large fractional momentum $z\to1$ in pp collisions, become dramatically strong on a nuclear target, and push the partial cross sections of leading neutron production…

High Energy Physics - Phenomenology · Physics 2017-02-27 B. Z. Kopeliovich , I. K. Potashnikova , Ivan Schmidt

Prospects of measuring polarized photons emitted from a quark-gluon plasma (QGP) are discussed. In particular, the detection of a possible quark spin polarization in a QGP using circularly polarized photons emitted from the plasma is…

High Energy Physics - Phenomenology · Physics 2008-11-26 Andreas Ipp , Antonino Di Piazza , Jörg Evers , Christoph H. Keitel

Studies of active matter, from molecular assemblies to animal groups, have revealed two broad classes of behavior: a tendency to align yields orientational order and collective motion, whereas particle repulsion leads to self-trapping and…

Soft Condensed Matter · Physics 2021-11-23 Jie Zhang , Ricard Alert , Jing Yan , Ned S. Wingreen , Steve Granick

Polarization transfers from an electron spin to a nuclear spin are essential for various physical tasks, such as dynamic nuclear polarization in nuclear magnetic resonance and quantum state transformations on hybrid electron-nuclear spin…

Quantum Physics · Physics 2015-11-11 Haidong Yuan , Robert Zeier , Nikolas Pomplun , Steffen J. Glaser , Navin Khaneja

Active-particle suspensions exhibit distinct polarization-density patterns in activity landscapes, even without anisotropic particle interactions. Such polarization without alignment forces is at work in motility-induced phase separation…

Soft Condensed Matter · Physics 2021-06-09 Nicola Andreas Söker , Sven Auschra , Viktor Holubec , Klaus Kroy , Frank Cichos