Results 11 to 20 of about 301,890 (253)

Recent progresses in strange quark stars [PDF]

open access: yesFrontiers in Astronomy and Space Sciences
According to the hypothesis that strange quark matter may be the true ground state of matter at extremely high densities, strange quark stars should be stable and could exist in the Universe. It is possible that pulsars may actually be strange stars, but
Xiao-Li Zhang   +3 more
doaj   +2 more sources

Repeating fast radio bursts from collapses of the crust of a strange star [PDF]

open access: yesThe Innovation, 2021
Summary: Strange stars (SSs) are compact objects made of deconfined quarks. It is hard to distinguish SSs from neutron stars as a thin crust composed of normal hadronic matter may exist and obscure the whole surface of the SS.
Jinjun Geng, Bing Li, Yongfeng Huang
doaj   +2 more sources

Strange quark mass dependence of strange quark star properties

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
The effects of strange quark mass on masses, radii, and tidal deformabilities of strange quark stars are studied via the quasiparticle model that includes the non-perturbative features of QCD in low density region. The constraints of $$M_{\mathrm {TOV}} >
Bo-Lin Li, Yan Yan, Jia-Lun Ping
doaj   +1 more source

Remarks on strange-quark simulations with Wilson fermions [PDF]

open access: yesPhysical Review D, 2020
In the simulation of QCD with 2+1 flavors of Wilson fermions, the positivity of the fermion determinant is generally assumed. We present evidence that this assumption is in general not justified and discuss the consequences of this finding.
D. Mohler, S. Schaefer
semanticscholar   +1 more source

Generation of Electric Current by Magnetic Field at the Boundary: Quantum Scale Anomaly Versus Semiclassical Meissner Current Outside of the Conformal Limit

open access: yesAdvanced Physics Research, EarlyView., 2023
The paper discusses the role of scale anomaly in generating edge electric currents via the scale magnetic effect in scalar electrodynamics. Although the boundary electric current is much weaker than the Meissner current induced in superconducting materials, the scale anomaly can enhance conductivity near the boundary of the material.
Maxim Chernodub   +2 more
wiley   +1 more source

Confronting Strange Stars with Compact-Star Observations and New Physics

open access: yesUniverse, 2023
Strange stars ought to exist in the universe according to the strange quark matter hypothesis, which states that matter made of roughly equal numbers of up, down, and strange quarks could be the true ground state of baryonic matter rather than ordinary ...
Shuhua Yang   +3 more
doaj   +1 more source

Tidal Deformability of Strange Quark Planets and Strange Dwarfs [PDF]

open access: yesPhys. Rev. D 104, 123028 (2021), 2021
Strange quark matter, which is composed of u, d, and s quarks, could be the true ground of matter. According to this hypothesis, compact stars may actually be strange quark stars, and there may even be stable strange quark dwarfs and strange quark planets.
arxiv   +1 more source

Is distinct location evidence of distinct objects? Multilocation and the problem of parsimony

open access: yesAnalytic Philosophy, EarlyView., 2023
Abstract For an object to be multilocated is for it to wholly occupy disjoint spatial regions simultaneously. If multilocation is possible, it is possible that a multilocated particle is wholly located at 1080 distinct locations, such that it constitutes a particle‐for‐particle duplicate of the actual universe.
David Harmon
wiley   +1 more source

Why can hadronic stars convert into strange quark stars with larger radii [PDF]

open access: yes, 2020
The total binding energy of compact stars is the sum of the gravitational binding energy $(BE)_g$ and the nuclear binding energy $(BE)_n$, the last being related to the microphysics of the interactions.
A. Drago, G. Pagliara
semanticscholar   +1 more source

Role of Quark Matter and Color Superconductivity in the Structure and Tidal Deformability of Strange Dwarfs

open access: yesUniverse, 2023
In 1995, Glendenning, Kettner and Weber postulated the existence of a new class of compact stars resembling white dwarfs but containing a small strange quark-matter core surrounded by hadronic layers attaining much higher densities than those found in ...
Loïc Perot, Nicolas Chamel
doaj   +1 more source

Home - About - Disclaimer - Privacy