scholarly journals Maximum latent heat of neutron star matter without GR

2022 ◽  
Vol 258 ◽  
pp. 07007
Author(s):  
Eva Lope-Oter
Keyword(s):  
Neutron Star ◽  
Latent Heat ◽  
Modified Gravity ◽  
Current Knowledge ◽  
Neutron Star Matter ◽  
First Order ◽  
Model Independent ◽  
Dynamical Quantity ◽  
First Order Phase ◽  
Hadron Model

We show how the specific latent heat is relevant to characterize the first-order phase transitions in neutron stars. Our current knowledge of this dynamical quantity strongly depends on the uncertainty bands of Chiral Perturbation Theory and of pQCD calculations and can be used to diagnose progress on the equation of state. We state what is known to be hadron-model independent and without feedback from neutron star observations and, therefore, they can be used to test General Relativity as well as theories beyond GR, such as modified gravity.

scholarly journals Latent heat at the first order phase transition point of SU(3) gauge theory

2016 ◽  
Vol 94 (1) ◽  
Author(s):  
Mizuki Shirogane ◽  
Shinji Ejiri ◽  
Ryo Iwami ◽  
Kazuyuki Kanaya ◽  
Masakiyo Kitazawa ◽  
...  
Keyword(s):  
Phase Transition ◽  
Gauge Theory ◽  
Latent Heat ◽  
Order Phase Transition ◽  
Transition Point ◽  
Phase Transition Point ◽  
First Order ◽  
First Order Phase Transition ◽  
First Order Phase

scholarly journals Identifying a First-Order Phase Transition in Neutron-Star Mergers through Gravitational Waves

2019 ◽  
Vol 122 (6) ◽  
Author(s):  
Andreas Bauswein ◽  
Niels-Uwe F. Bastian ◽  
David B. Blaschke ◽  
Katerina Chatziioannou ◽  
James A. Clark ◽  
...  
Keyword(s):  
Phase Transition ◽  
Neutron Star ◽  
Gravitational Waves ◽  
Order Phase Transition ◽  
First Order ◽  
First Order Phase Transition ◽  
First Order Phase

scholarly journals NUCLEAR MATTER AND NEUTRON STARS IN A QUARK-HADRON MODEL

2011 ◽  
Vol 20 (supp02) ◽  
pp. 125-132
Author(s):  
STEFAN SCHRAMM ◽  
RODRIGO P. NEGREIROS ◽  
T. SCHÜRHOFF ◽  
VERONICA DEXHEIMER
Keyword(s):  
Phase Transitions ◽  
Neutron Stars ◽  
Nuclear Matter ◽  
High Temperatures ◽  
Low Temperatures ◽  
Degrees Of Freedom ◽  
Equations Of State ◽  
First Order ◽  
First Order Phase ◽  
Hadron Model

One of the difficulties in describing chiral symmetry and deconfinement phase transitions in strongly interacting matter at high temperatures as well as at high densities stems from the fact that one has to deal with very different degrees of freedom on both sides of the phase transition. Hadrons exist at low temperatures/densities whereas quarks and gluons occur in the other extreme. Gluing two separate equations of state together will necessarily lead to first-order phase transitions (which are not expected, at least not at small densities and high temperatures). In order to remedy this problem a unified model of quarks and hadrons (the QH model) has been developed that integrates both degrees of freedom in an effective chiral flavor-SU(3) ansatz. Results for nuclear matter and neutron stars for the purely hadronic part of the theory and then results for excited matter and stars for the full QH model are presented. Various extensions of this approach are discussed.

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