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相关论文: Three problems of superfluid dark matter and their…

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There has been much interest in novel models of dark matter that exhibit interesting behavior on galactic scales. A primary motivation is the observed Baryonic Tully-Fisher Relation in which the mass of galaxies increases as the quartic…

宇宙学与河外天体物理 · 物理学 2021-11-10 Mark P. Hertzberg , Jacob A. Litterer , Neil Shah

We investigate the role played by dark energy perturbations in the skewness $S_3$ of large-scale matter distribution. We consider a two-fluid universe composed by matter and dark energy, with perturbations in both components, and we…

宇宙学与河外天体物理 · 物理学 2022-05-02 Raquel Emy Fazolo , Luca Amendola , Hermano Velten

Two-dimensional (2D) metals can host gapless plasmonic excitations, which strongly couple to electrons and thus may significantly affect superconductivity in layered materials. To investigate the dynamical interplay of the electron-electron…

超导电性 · 物理学 2024-08-21 Yann in 't Veld , Mikhail I. Katsnelson , Andrew J. Millis , Malte Rösner

We study the dynamical properties and space distribution of dark energy in the weak and strong gravitational fields caused by inhomogeneities of matter in the static world of galaxies and clusters. We show that the dark energy in the weak…

宇宙学与河外天体物理 · 物理学 2014-09-17 B. Novosyadlyj , Yu. Kulinich , M. Tsizh

We study the effects of superfluid dark matter on the structure of a cosmic string wake, considering both the effects of regular and quantum pressure terms. We consider the total fluid to consist of a combination of baryons and dark matter.…

宇宙学与河外天体物理 · 物理学 2024-06-28 Aline Favero , Robert Brandenberger

The cosmological constant is estimated by considering the surface tension of supervoids in a void-dominated cosmic fluid by which we can get a possible source of dark energy. Looking at voids as bubbles, we define the concept of surface…

宇宙学与河外天体物理 · 物理学 2022-07-25 E. Yusofi , M. Khanpour , B. Khanpour , M. Ramzanpour , M. Mohsenzadeh

It is generally accepted that the phonon gas of a superfluid always enters a weak coupling regime at sufficiently low temperatures, whatever the strength of the interactions between the underlying particles (constitutive of the superfluid).…

量子气体 · 物理学 2024-06-11 Yvan Castin , Alan Serafin , Alice Sinatra

Gravitational potentials in the cosmos are deeper than expected from observed visible objects, a phenomenon usually attributed to dark matter, presumably in the form of a new fundamental particle. Until such a particle is observed, the jury…

宇宙学与河外天体物理 · 物理学 2011-12-07 Scott Dodelson

Recently, a new form of dark matter has been suggested to naturally reproduce the empirically successful aspects of Milgrom's law in galaxies. The dark matter particle candidates are axion-like, with masses of order eV and strong…

宇宙学与河外天体物理 · 物理学 2018-09-19 Lasha Berezhiani , Benoit Famaey , Justin Khoury

We show how the relativistic effective field theory for the superfluid phase of helium-4 can replace the standard methods used to compute the production rates of low momentum excitations due to the interaction with an external probe. This…

高能物理 - 唯象学 · 物理学 2019-12-11 Andrea Caputo , Angelo Esposito , Antonio D. Polosa

In this work, we generalize the two-fluid theory to a superfluid system with anisotropic effective masses along different principal axis directions. As a specific example, such a theory can be applied to spin-orbit coupled Bose-Einstein…

量子气体 · 物理学 2019-04-26 Yi-Cai Zhang , Chao-Fei Liu , Bao Xu , Gang Chen , W. M. Liu

Empirical theories of Dark Matter like MOND gravity and of Dark Energy like f(R) gravity were motivated by astronomical data. But could these theories be branches rooted from a more general hence natural framework? Here we propose the…

天体物理学 · 物理学 2015-05-13 HongSheng Zhao , Baojiu Li

The standard paradigm of cosmology assumes two distinct dark components, namely dark matter and dark energy. However, the necessity of splitting the dark-side world into two sectors has not been experimentally or theoretically proven.…

宇宙学与河外天体物理 · 物理学 2025-12-12 Yan Su , Zhiqi Huang , Yanhong Yao , Junchao Wang , Jianqi Liu

We present a superfluid dark star model consisting of relativistic dark bosons with two-body self-interaction. The obtained masses, radii, and tidal deformability depend in a simple way on the boson mass and interaction strength. We report…

宇宙学与河外天体物理 · 物理学 2025-03-03 Lorenzo Cipriani , Massimo Mannarelli , Fabrizio Nesti , Silvia Trabucco

I start with a brief introduction to MOND phenomenology and its possible roots in cosmology--a notion that may turn out to be the most far reaching aspect of MOND. Next I discuss the implications of MOND for the dark matter (DM) doctrine:…

天体物理学 · 物理学 2009-06-23 Mordehai Milgrom

We propose a new framework unifying cold dark matter (CDM) and Modified Newtonian Dynamics (MOND) to solve their respective problems on galactic scales and large scale structure formation. In our framework the dark matter clusters on large…

宇宙学与河外天体物理 · 物理学 2012-07-04 Baojiu Li , Hongsheng Zhao

Insight into why superconductivity in pristine and doped monolayer graphene seems strongly suppressed has been central for the recent years' various creative approaches to realize superconductivity in graphene and graphene-like systems. We…

超导电性 · 物理学 2020-06-12 Even Thingstad , Akashdeep Kamra , Justin W. Wells , Asle Sudbø

We show that the rather unexpected pressure dependence of superfluid density observed near the superfluid-supersolid transition by Kim {\em et.al.}[M.H.W. Chan, {\em private communication}], can be understood if the transition from…

统计力学 · 物理学 2007-05-23 Tai Kai Ng

Based on Newtonian dynamics, observations show that the luminous masses of astrophysical objects that are the size of a galaxy or larger are not enough to generate the measured motions which they supposedly determine. This is typically…

广义相对论与量子宇宙学 · 物理学 2016-04-22 Chung-Ming Ko

In this article, we examine a model which proposes a common explanation for the presence of additional attractive gravitational effects -- generally considered to be due to dark matter -- in galaxies and in clusters, and for the presence of…

天体物理学 · 物理学 2007-05-23 Alexandre Arbey