Results 31 to 40 of about 203,600 (192)
A Polytropic Model of Quark Stars [PDF]
Astropart.Phys.31:128-134,2009, 2008 A polytropic quark star model is suggested in order to establish a general framework in which theoretical quark star models could be tested by observations. The key difference between polytropic quark stars and the polytropic model studied previously for normal (i.e., non-quarkian) stars is related to two issues: (i) a constant term representing the ...
arxiv +1 more source
Quark condensate and chiral symmetry restoration in neutron stars
Physics Letters B, 2022 Based on an equivparticle model, we investigate the in-medium quark condensate in neutron stars. Carrying out a Taylor expansion of the nuclear binding energy to the order of ρ3, we obtain a series of EOSs for neutron star matter, which are confronted ...
Hao-Miao Jin +3 more
doaj
Spin-down induced quark-hadron phase transition in cold isolated neutron stars [PDF]
, 2022 We have studied the spin-down induced phase transition in cold, isolated neutron stars in this work. After birth, as the star slows down, its central density rises and crosses the critical density of phase transition, and a quark core is seeded inside the star.
arxiv +1 more source
Quark matter symmetry energy and quark stars [PDF]
The Astrophysical Journal, 780:135, 2014, 2012 We extend the confined-density-dependent-mass (CDDM) model to include isospin dependence of the equivalent quark mass. Within the confined-isospin-density-dependent-mass (CIDDM) model, we study the quark matter symmetry energy, the stability of strange quark matter, and the properties of quark stars.
arxiv +1 more source
STAR highlights on heavy ion physics
EPJ Web of Conferences, 2015 RHIC-STAR is a mid-rapidity collider experiment for studying high energy nuclear collisions. The main physics goals of STAR experiment are 1) studying the properties of the strongly coupled Quark Gluon Plasma 2) explore the QCD phase diagram structure ...
Shi Shusu
doaj +2 more sources
Generic Conditions for Stable Hybrid Stars
EPJ Web of Conferences, 2014 We study the mass-radius curve of hybrid stars, assuming a single first-order phase transition between nuclear and quark matter, with a sharp interface between the quark matter core and nuclear matter mantle.
Alford Mark G., Han Sophia
doaj +1 more source
Strange Quark Matter in Stars: A General Overview [PDF]
J.Phys. G31 (2005) S651-S658, 2004 The physics of strange quark matter in the core of compact stars and recent compact star data is reviewed. Emphasis is put on the possible existence of a third family of strange quark stars.
arxiv +1 more source
Quark Stars: Features and Findings [PDF]
Eur.Phys.J.C49:199-203,2007, 2007 Under extreme conditions of temperature and/or density, quarks and gluons are expected to undergo a deconfinement phase transition. While this is an ephemeral phenomenon at the ultra-relativistic heavy-ion collider (BNL-RHIC), quark matter may exist naturally in the dense interior of neutron stars.
arxiv +1 more source
Quantum Anomalies in Condensed Matter
Advanced Physics Research, EarlyView.Quantum materials provide a fertile ground in which to test and realize quantum anomalies predicted by quantum field theory. Quantum anomalies need to be canceled globally, however, quantum states with a quantum anomaly can exist at the boundary of topological materials.
Michael T. Pettes +11 more
wiley +1 more source
Structure of Quark Stars [PDF]
, 2012 This paper gives an brief overview of the structure of hypothetical strange quarks stars (quark stars, for short), which are made of absolutely stable 3-flavor strange quark matter. Such objects can be either bare or enveloped in thin nuclear crusts, which consist of heavy ions immersed in an electron gas. In contrast to neutron stars, the structure of
arxiv +1 more source