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相关论文: Kinetic decoupling of WIMPs: analytic expressions

200 篇论文

A proposal for cooling the translational motion of optically levitated magnetic nanoparticles is presented. The theoretical cooling scheme involves the sympathetic cooling of a ferromagnetic YIG nanosphere with a spin-polarized atomic gas.…

原子物理 · 物理学 2020-11-17 T. Seberson , Peng Ju , Jonghoon Ahn , Jaehoon Bang , Tongcang Li , F. Robicheaux

In this work, we study the non-minimally-coupled Higgs model in the context of warm inflation scenario on both metric and Palatini approaches. We particularly consider a dissipation parameter of the form $\Gamma=C_{T}T$ with $C_{T}$ being a…

广义相对论与量子宇宙学 · 物理学 2023-07-20 Thammarong Eadkhong , Punsiri Dam-O , Phongpichit Channuie , Davood Momeni

We consider the cosmological system with two interacting fluids: dark energy and dark matter, in a homogeneous and isotropic universe with dissipation. The modified gravitational equation for dark matter is solved. The analytic…

广义相对论与量子宇宙学 · 物理学 2015-08-19 I. Brevik , V. V. Obukhov , A. V. Timoshkin

Using a Gibbs sampling algorithm for joint CMB estimation and component separation, we compute the large-scale CMB and foreground posteriors of the 3-yr WMAP temperature data. Our parametric data model includes the cosmological CMB signal…

天体物理学 · 物理学 2010-11-11 H. K. Eriksen , C. Dickinson , J. B. Jewell , A. J. Banday , K. M. Gorski , C. R. Lawrence

We introduce a simple yet powerful {\it analytic} method which obtains the structure of cosmic microwave background anisotropies to better than 5-10\% in temperature fluctuations on {\it all} scales. It is applicable to {\it any} model in…

天体物理学 · 物理学 2009-07-17 Wayne Hu , Naoshi Sugiyama

Calculating relative free energies is a topic of substantial interest and has many applications including solvation and binding free energies, which are used in computational drug discovery. However, there remain the challenges of accuracy,…

化学物理 · 物理学 2016-09-28 Asaf Farhi , Bipin Singh

We develop the strong coupling quantum thermodynamics based on the solution of the exact master equation. We find that both the Hamiltonian and the temperature must be renormalized due to the system-reservoir couplings. With the…

量子物理 · 物理学 2020-10-06 Wei-Ming Huang , Wei-Min Zhang

We provide a detailed study of gravitational reheating in quintessential inflation generalizing previous analyses only available for the standard case when inflation is followed by an era dominated by the energy density of radiation.…

高能物理 - 唯象学 · 物理学 2009-07-22 E. J. Chun , S. Scopel , I. Zaballa

Warm dense matter is a highly energetic phase characterized by strong correlations, thermal effects, and quantum effects of electrons. Thermal density functional theory is commonly used in simulations of this challenging phase, driving the…

强关联电子 · 物理学 2025-09-10 Brittany P. Harding , Francisca Sagredo , Vincent Martinetto , Aurora Pribram-Jones

We study the holographic supersymmetric Yang-Mills (SYM) theory, which is living in a hyperbolic space, in terms of the entanglement entropy. The theory contains a parameter ($C$) corresponding to the excitation of the SYM theory, and it…

高能物理 - 理论 · 物理学 2015-10-21 Kazuo Ghoroku , Masafumi Ishihara

This paper suggests using the configurational temperature $\Tc$ for quantifying how far an active-matter system is from thermal equilibrium. We measure this ``distance'' by the ratio of the systemic temperature $\Ts$ to $\Tc$, where $\Ts$…

软凝聚态物质 · 物理学 2023-02-20 Shibu Saw , Lorenzo Costigliola , Jeppe C. Dyre

Using path-integral Monte Carlo (PIMC) simulations, we have calculated energy of a crystal composed of atomic nuclei and uniform incompressible electron background in the temperature and density range, covering fully ionized layers of…

高能天体物理现象 · 物理学 2023-10-02 D. A. Baiko , A. I. Chugunov

We investigate how the temperature calculated from the microcanonical entropy compares with the canonical temperature for finite isolated quantum systems. We concentrate on systems with sizes that make them accessible to numerical exact…

统计力学 · 物理学 2023-04-05 Phillip C. Burke , Masudul Haque

We present a model for electron-ion transport in Warm Dense Matter that incorporates Coulomb coupling effects into the quantum Boltzmann equation of Uehling and Uhlenbeck through the use of a statistical potential of mean force. Although…

等离子体物理 · 物理学 2021-06-23 Shane Rightley , S. D. Baalrud

We show that next generation Cosmic Microwave Background experiments will be capable of the first ever measurement of the inflaton coupling to other particles, opening a new window to probe the connection between cosmic inflation and…

高能物理 - 唯象学 · 物理学 2025-07-28 Marco Drewes , Lei Ming

The dynamics of interacting dark matter-dark energy models is characterized through an interaction rate function quantifying the energy flow between these dark sectors. In most of the interaction functions, the expansion rate Hubble…

宇宙学与河外天体物理 · 物理学 2021-05-05 Weiqiang Yang , Supriya Pan , Llibert Aresté Saló , Jaume de Haro

In the expanding universe, two interacting fields are no longer in thermal contact when the interaction rate becomes smaller than the Hubble expansion rate. After decoupling, two subsystems are usually treated separately in accordance with…

高能物理 - 理论 · 物理学 2017-12-20 Yuichiro Nakai , Noburo Shiba , Masaki Yamada

It has recently been shown that if the dark matter is in thermal equilibrium with a sector that is highly decoupled from the Standard Model, it can freeze-out with an acceptable relic abundance, even if the dark matter is as heavy as ~1-100…

高能物理 - 唯象学 · 物理学 2016-12-02 Asher Berlin , Dan Hooper , Gordan Krnjaic

Temperature dependence of thermopower in the multiorbital Hubbard model is studied by using the dynamical mean-field theory with the non-crossing approximation impurity solver. It is found that the Coulomb interaction, the Hund coupling,…

强关联电子 · 物理学 2014-06-19 M. Sekino , S. Okamoto , W. Koshibae , M. Mori , S. Maekawa

We study a system of electrons on a one-dimensional lattice, interacting through the long range Coulomb forces, by means of a variational technique which is the strong coupling analog of the Gutzwiller approach. The problem is thus the…

强关联电子 · 物理学 2007-05-23 S. Fratini , B. Valenzuela , D. Baeriswyl