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Nucleon momentum distributions at various densities and isospin-asymmetries for nuclear matter are investigated systematically within the extended Bruecker-Hartree-Fock approach.The shapes of the normalized momentum distributions varying…

核理论 · 物理学 2019-11-27 Z. X. Yang , X. L. Shang , G. C. Yong , W. Zuo , Y. Gao

The free energy and the equation of state of isospin-asymmetric nuclear matter are calculated at finite temperature up to three loop order in the framework of in-medium chiral perturbation theory, systematically incorporating one- and…

核理论 · 物理学 2012-03-14 Salvatore Fiorilla , Norbert Kaiser , Wolfram Weise

The interior of a neutron star is expected to be occupied by a neutron $^3P_2$ superfluid, which is the condensate of spin-triplet $p$-wave Cooper pairs of neutrons with total angular momentum $J=2$. Here we investigate the thermodynamic…

核理论 · 物理学 2021-10-14 Takeshi Mizushima , Shigehiro Yasui , Daisuke Inotani , Muneto Nitta

In solid_state hybrid electron_nuclear spin systems quantum entanglement plays vital role in allowing accessible transfer of information between subatomic particles, regardless of the host lattice coordination spatial geometry, revealing…

量子物理 · 物理学 2013-11-25 Vesna Berec , J. S. Braunstein

Thanks to J.~Schwinger, the process of elastic scattering of neutrons by nuclei is known to depend on the interference between a nuclear amplitude and an electromagnetic one for small scattering angles, resulting in spin asymmetries of a…

核理论 · 物理学 2019-12-04 Andrei V. Afanasev , D. V. Karlovets , V. G. Serbo

In this work, we explore the possible formation of ordered phases in hadronic matter, related to the presence of hyperons at high densities. We analyze a microscopic mechanism which can lead to the crystallization of the hyperonic sector by…

核理论 · 物理学 2019-08-17 M. A. Perez-Garcia , J. Diaz-Alonso , N. Corte , L. Mornas , J. P. Suarez

Recent measurements from the HERMES and SMC collaborations show a remarkably large azimuthal single-spin asymmetries A_{UL} and A_{UT} of the proton in semi-inclusive pion leptoproduction. We show that final-state interactions from gluon…

高能物理 - 唯象学 · 物理学 2008-11-26 Stanley J. Brodsky , Dae Sung Hwang , Ivan Schmidt

We review recent results obtained for charge asymmetric systems at Fermi and intermediate energies, ranging from 30 MeV/u to 1 GeV/u. Observables sensitive to the isospin dependent part of nuclear interaction are discussed, providing…

核理论 · 物理学 2010-04-23 M. Colonna , V. Baran , M. Di Toro , V. Giordano

We study theoretically the cooling of an ensemble of nuclear spins coupled to the spin of a localized electron in a quantum dot. We obtain a master equation for the state of the nuclear spins interacting with a sequence of polarized…

介观与纳米尺度物理 · 物理学 2007-05-23 H. Christ , J. I. Cirac , G. Giedke

Two-dimensional colloidal suspensions exposed to periodic external fields exhibit a variety of molecular crystalline phases. There two or more colloids assemble at lattice sites of potential minima to build new structural entities, referred…

软凝聚态物质 · 物理学 2009-11-11 Andreja Sarlah , Erwin Frey , Thomas Franosch

Optically-induced nuclear spin polarization in a fluorine-doped ZnSe epilayer is studied by time-resolved Kerr rotation using resonant excitation of donor-bound excitons. Excitation with helicity-modulated laser pulses results in a…

介观与纳米尺度物理 · 物理学 2016-01-06 F. Heisterkamp , A. Greilich , E. A. Zhukov , E. Kirstein , T. Kazimierczuk , V. L. Korenev , I. A. Yugova , D. R. Yakovlev , A. Pawlis , M. Bayer

Isospin-breaking effects in the baryonic sector are studied in the framework of a medium-modified Skyrme model. The neutron-proton mass difference in infinite, asymmetric nuclear matter is discussed. In order to describe the influence of…

核理论 · 物理学 2009-06-09 Ulf-G. Meißner , A. M. Rakhimov , A. Wirzba , U. T. Yakhshiev

The Stark-interference technique is commonly used to amplify the feeble parity-violating signal in atomic experiments. As a result, interpretation of these experiments in terms of electroweak observables requires knowledge of the…

原子物理 · 物理学 2023-07-11 D. Xiao , H. B. Tran Tan , A. Derevianko

A new scenario for neutron-star cooling is proposed, based on the correspondence between pion condensation, occurring in neutron matter due to critical spin-isospin fluctuations, and the metal-insulator phase transition in a two-dimensional…

天体物理学 · 物理学 2008-11-26 V. A. Khodel , J. W. Clark , M. Takano , M. V. Zverev

Spin nematic (SN) is a magnetic analog of classical liquid crystals, a fourth state of matter exhibiting characteristics of both liquid and solid. Particularly intriguing is a valence-bond SN, in which spins are quantum entangled to form a…

An experimental opportunity is presented for the future to measure possible P- and T-non-invariant axion-like interaction between nucleons in a Fm range. This interaction may be searched for in the measurement spin-dependent asymmetry of…

核实验 · 物理学 2013-11-21 Yu. N. Pokotilovski

Phonon exchange with nuclei in the course of fusion reactions that occur in a solid has not been analyzed previously. This problem has become of interest in connection with claims of observations of anomalies in metal deuterides. If the…

其他凝聚态物理 · 物理学 2007-05-23 Irfan Chaudhary , Peter Hagelstein

Neutron scattering on exotic nuclides is a class of processes which can not be studied directly now and in any observable future. Resonance proton scattering of exotic nuclide on a thick target in inverse kinematics can be used to infer the…

核理论 · 物理学 2025-04-22 M. S. Khirk , L. V. Grigorenko , D. E. Lanskoy , P. G. Sharov

The antiferromagnetic - ferromagnetic phase transition in YBaCo2O5.50 and YBaCo2O5.44 cobaltites with different types of oxygen-ion ordering in the [YO0.5/0.44] layers has been studied by neutron powder diffraction. Using the magnetic…

材料科学 · 物理学 2007-05-23 D. D. Khalyavin , D. N. Argyriou , U. Amann , A. A. Yaremchenko , V. V. Kharton

We study the isospin singlet pairing in asymmetric nuclear matter with nonzero total momentum of the condensate Cooper pairs. The quasiparticle excitation spectrum is fourfold split compared to the usual BCS spectrum of the symmetric,…

核理论 · 物理学 2009-11-06 A. Sedrakian