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The importance of a Coulomb correction to the formalism proposed by Albergo et al. for determining the temperatures of nuclear systems at break-up and the ensities of free nucleon gases is discussed. While the proposed correction has no…

核理论 · 物理学 2009-11-06 J. Tõke , W. Gawlikowicz , W. U. Schröder

We reinterpret the results of the direct searches for dark matter in terms of composite dark matter, i.e. dark matter particles that form neutral bound states, generically called dark atoms, either with ordinary particles, or with other…

高能物理 - 唯象学 · 物理学 2016-01-20 Quentin Wallemacq

A binary mixture of oppositely charged components confined to a plane such as cationic and anionic lipid bilayers may exhibit local segregation. The relative strength of the net short range interactions, which favors macroscopic…

软凝聚态物质 · 物理学 2009-11-11 Sharon M. Loverde , Yury S. Velichko , Monica Olvera de la Cruz

Trace charge imbalances can explain puzzling cosmological observations such as the large `missing' fraction of electrons in cosmic rays and their contrast to the charge-neutral solar wind, the extreme energy sources that sustain pulsars,…

宇宙学与河外天体物理 · 物理学 2016-12-22 Jason P. Morgan

A model of inhomogeneous baryogenesis based on the Affleck and Dine mechanism is described. A simple coupling of the scalar baryon field to the inflaton allows for formation of astronomically significant bubbles with a large baryon (or…

高能物理 - 唯象学 · 物理学 2008-11-26 A. D. Dolgov , M. Kawasaki , N. Kevlishvili

We explore the gravitational baryogenesis paradigm in the homogeneous and isotropic cosmology of generalized coupling gravity and, in particular, of the so-called Minimal Exponential Measure Model (MEMe). We show that, also in this theory,…

广义相对论与量子宇宙学 · 物理学 2025-09-22 A. Troisi , G. Lambiase , S. Carloni

We place observational constraints on two models within a class of scenarios featuring an elastic interaction between dark energy and dark matter that only produces momentum exchange up to first order in cosmological perturbations. The…

宇宙学与河外天体物理 · 物理学 2021-11-24 Jose Beltrán Jiménez , Dario Bettoni , David Figueruelo , Florencia Anabella Teppa Pannia , Shinji Tsujikawa

We develop a set of controlled, analytic approximations to study the effects of bubble collisions on cosmology. We expand the initial perturbation to the inflaton field caused by the collision in a general power series, and determine its…

高能物理 - 理论 · 物理学 2015-06-04 Roberto Gobbetti , Matthew Kleban

We derive and evaluate expressions for the frictional Coulomb drag between disordered two-dimensional electron gas layers. Our derivation is based on the memory-function formalism and the expression for the drag reduces to previously known…

凝聚态物理 · 物理学 2009-10-22 Lian Zheng , A. H. MacDonald

In this letter we show that the presence of the long-range Coulomb force in dense stellar matter implies that the total charge cannot be associated with a chemical potential, even if it is a conserved quantity. As a further consequence, the…

天体物理学 · 物理学 2008-11-26 P. Chomaz , F. Gulminelli , C. Ducoin , P. Napolitani , K. H. O. Hasnaoui

We propose a cosmological scenario based on the assumption that the Standard Model possesses a large number of copies. It is demonstrated that baryons in the hidden copies of the standard model can naturally account for the dark matter. The…

高能物理 - 理论 · 物理学 2009-08-11 Gia Dvali , Ignacy Sawicki , Alexander Vikman

Extension of particle symmetry implies new conserved charges and the lightest particles, possessing such charges, should be stable. Created in early Universe, stable charged heavy leptons and quarks can exist and, hidden in elusive atoms…

天体物理学 · 物理学 2007-05-23 Maxim Yu. Khlopov

We study the cosmology of supersymmetric models in which the supersymmetry breaking effects are mediated by gauge interactions at about the 10^5 GeV scale. We first point out that the gravitino is likely to overclose the Universe in this…

高能物理 - 唯象学 · 物理学 2009-09-29 Andre de Gouvea , Takeo Moroi , Hitoshi Murayama

We study the implications for electroweak baryogenesis (EWB) within the minimal supersymmetric Standard Model (MSSM) of present and future searches for the permanent electric dipole moment (EDM) of the electron, for neutralino dark matter,…

高能物理 - 唯象学 · 物理学 2014-11-18 Vincenzo Cirigliano , Stefano Profumo , Michael J. Ramsey-Musolf

Heat dissipation in current-carrying cryogenic nanostructures is problematic because the phonon density of states decreases strongly as energy decreases. We show that the Coulomb interaction can prove a valuable resource for carrier cooling…

介观与纳米尺度物理 · 物理学 2013-08-27 John King Gamble , Mark Friesen , Robert Joynt , S. N. Coppersmith

Exact calculations of collective excitations and charge/spin (pseudo)gaps in an ensemble of bipartite and nonbipartite clusters yield level crossing degeneracies, spin-charge separation, condensation and recombination of electron charge and…

强关联电子 · 物理学 2009-11-13 A. N. Kocharian , G. W. Fernando , K. Palandage , J. W. Davenport

Coulomb-like interactions typically has a cross section scales with velocity dependence as $\sigma=\sigma_0 v^{-4}$. The momentum transfer rate between a slightly charged dark matter and ionized particles increases significantly at low…

宇宙学与河外天体物理 · 物理学 2023-11-21 Yugen Lin , Yu Gao

A new component added to the standard model of cosmology that behaves like a cosmological constant at early times and then dilutes away as radiation or faster can resolve the Hubble tension. We show that a rolling axion coupled to a…

宇宙学与河外天体物理 · 物理学 2020-05-05 Kim V. Berghaus , Tanvi Karwal

In this paper, with considering the nonlinear electromagnetic field coupled to Einstein gravity, we obtain the higher dimensional slowly rotating charged black hole solutions. By use of the fact that the temperature of the extreme black…

高能物理 - 理论 · 物理学 2010-11-15 S. H. Hendi

The Experiment to Detect the Global Epoch of Reionization Signature (EDGES) collaboration has reported the detection of an absorption feature in the sky-averaged spectrum at $\approx 78$ MHz. This signal has been interpreted as the…

宇宙学与河外天体物理 · 物理学 2018-08-27 J. Colin Hill , Eric J. Baxter