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We study the thermodynamics of galactic clustering under the higher-order corrected Newtonian dynamics. The clustering of galaxies is considered as a gravitational phase transition. In order to study the effects of higher-order correction…

广义相对论与量子宇宙学 · 物理学 2019-01-23 Sudhaker Upadhyay , Behnam Pourhassan , Salvatore Capozziello

Motivated by the recent measurement of proton-proton spin-correlation parameters up to 2.5 GeV laboratory energy, we investigate models for nucleon-nucleon (NN) scattering above 1 GeV. Signatures for a gradual failure of the traditional…

核理论 · 物理学 2009-11-10 K. O. Eyser , R. Machleidt , W. Scobel , the EDDA Collaboration

CPT symmetry is at the heart of the Standard Model of particle physics and experimentally very well tested, but expected to be broken in some approaches to quantum gravity. It thus becomes pertinent to explore which of the two alternatives…

广义相对论与量子宇宙学 · 物理学 2026-03-10 Astrid Eichhorn , Marc Schiffer

We describe dynamics of spin and valley transitions driven by alternating electric fields in quantum dots defined electrostatically within semiconducting carbon nanotubes (CNT). We use the tight-binding approach to describe the states…

介观与纳米尺度物理 · 物理学 2014-09-04 E. N. Osika , A. Mreńca , B. Szafran

A model for the Lorentz- and CPT-violating frequency shift for the antihydrogen $1S$-$2P$ transition in the presence of an external magnetic field is derived. Using the recent measurement of the $1S$-$2P$ transition frequency in…

高能物理 - 唯象学 · 物理学 2025-11-13 Arnaldo J. Vargas

Gravitational wave observations can potentially measure properties of neutron star equations of state by measuring departures from the point-particle limit of the gravitational waveform produced in the late inspiral of a neutron star…

广义相对论与量子宇宙学 · 物理学 2011-10-19 Charalampos Markakis , Jocelyn S. Read , Masaru Shibata , Koji Uryu , Jolien D. E. Creighton , John L. Friedman , Benjamin D. Lackey

Invariance under the combined transformations of CPT (in any order) is guaranteed in Quantum Field Theory in flat space times due to a basic theorem (CPT Theorem). The currently used formalism of particle physics phenomenology is based on…

高能物理 - 唯象学 · 物理学 2007-05-23 Nick E. Mavromatos

Bluhm-Kostelecky (BK) Lagrangian to test Lorentz violation with spin-polarised test bodies is shown to be transformed to a torsion-coupling constant Lagrangian by taking into account the Fock-Ivanenko coefficients in spinor form. In this…

高能物理 - 唯象学 · 物理学 2007-05-23 L. C. Garcia de Andrade

We report a search for exotic spin-spin interactions between neutrons and electrons which could signal new physics beyond the Standard Model using slow neutron polarimetric imaging through a dense medium of polarized electrons. Our dense…

The phase perturbation arising from spin-rotation coupling is developed as a natural extension of the celebrated Sagnac effect. Experimental evidence in support of this phase shift, however, has yet to be realized due to the exceptional…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Bahram Mashhoon , Richard Neutze , Mark Hannam , Geoffrey E. Stedman

We present spin noise (SN) measurements on an ensemble of donor-bound electrons in ultrapure GaAs:Si covering temporal dynamics over six orders of magnitude from milliseconds to nanoseconds. The SN spectra detected at the donor-bound…

介观与纳米尺度物理 · 物理学 2015-10-28 Fabian Berski , Jens Hübner , Michael Oestreich , Arne Ludwig , A. D. Wieck , Mikhail Glazov

In this paper we review the basics of magneto-rotational properties of neutron stars focusing on spin-up/spin-down behavior at different evolutionary stages. The main goal is to provide equations for the spin frequency changes in various…

高能天体物理现象 · 物理学 2024-02-08 P. Abolmasov , A. V. Biryukov , S. B. Popov

Exploiting simple yet remarkable properties of relativistic gravitational scattering, we use first-order self-force (linear-in-mass-ratio) results to obtain arbitrary-mass-ratio results for the complete third-subleading post-Newtonian…

广义相对论与量子宇宙学 · 物理学 2020-07-08 Andrea Antonelli , Chris Kavanagh , Mohammed Khalil , Jan Steinhoff , Justin Vines

In this letter, we calculate the probability for resonantly induced transitions in quantum states due to time dependent gravitational perturbations. Contrary to common wisdom, the probability of inducing transitions is not infinitesimally…

广义相对论与量子宇宙学 · 物理学 2016-07-13 A. Landry , M. B. Paranjape

We investigate the joint influence of CPT violation and quantum-gravity-induced Planck-scale corrections on the entanglement entropy of two-flavor neutrino oscillations. Building on the CPT-violating neutrino mass matrix arising from…

高能物理 - 唯象学 · 物理学 2026-04-01 Bipin Singh Koranga , Baktiar Wasir Farooq

We reveal the role of the spin variables' zero-point fluctuations (ZPFs) on the stability of Bloch point (BP) singularities. As topological solitons, BPs are important in topological transitions in nanomagnets. BPs present a singularity at…

介观与纳米尺度物理 · 物理学 2023-05-31 Alonso Tapia , Carlos Saji , Alejandro Roldan , Alvaro S. Nunez

In this paper, we provide a systematic investigation of high-order primordial perturbations with nonlinear dispersion relations due to quantum gravitational effects in the framework of {\em uniform asymptotic approximations}. Because of…

广义相对论与量子宇宙学 · 物理学 2016-07-06 Tao Zhu , Anzhong Wang , Klaus Kirsten , Gerald Cleaver , Qin Sheng

Tests of Lorentz invariance violation and CPT Violation in neutrino oscillations are discussed. The sensitivity of current and future experiments is presented.

高能物理 - 唯象学 · 物理学 2017-08-23 S. Pakvasa

We analyze the calculation of bound states for a nonrelativistic spin-half neutral particle under the influence of a Coulomb-like potential induced by Lorentz symmetry breaking effects. We show that the truncation condition proposed by the…

量子物理 · 物理学 2020-09-29 Francisco M. Fernández

We consider the spin echo dynamics of a nitrogen-vacancy center qubit based the $S\!= \! 1$ ground state spin manifold, caused by a dynamically polarized nuclear environment. We show that the echo signal acquires then a nontrivially…

介观与纳米尺度物理 · 物理学 2020-04-14 Damian Kwiatkowski , Piotr Szańkowski , Łukasz Cywiński
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