scholarly journals The quark chemical potential of QCD phase transition and the stochastic background of gravitational waves

2019 ◽  
Vol 789 ◽  
pp. 626-633 ◽  
Author(s):  
Salvatore Capozziello ◽  
Mohsen Khodadi ◽  
Gaetano Lambiase
Keyword(s):  
Phase Transition ◽  
Gravitational Waves ◽  
Chemical Potential ◽  
Qcd Phase Transition ◽  
Stochastic Background

scholarly journals Gravitational wave signals of dark matter freeze-out

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Danny Marfatia ◽  
Po-Yan Tseng
Keyword(s):  
Phase Transition ◽  
Dark Matter ◽  
Gravitational Waves ◽  
Order Phase Transition ◽  
First Order ◽  
Stochastic Background ◽  
First Order Phase Transition ◽  
Relic Abundance ◽  
First Order Phase ◽  
Freeze Out

Abstract We study the stochastic background of gravitational waves which accompany the sudden freeze-out of dark matter triggered by a cosmological first order phase transition that endows dark matter with mass. We consider models that produce the measured dark matter relic abundance via (1) bubble filtering, and (2) inflation and reheating, and show that gravitational waves from these mechanisms are detectable at future interferometers.

scholarly journals Time-crystal ground state and production of gravitational waves from QCD phase transition

2019 ◽  
Vol 43 (6) ◽  
pp. 065101
Author(s):  
Andrea Addazi ◽  
Antonino Marcianò ◽  
Roman Pasechnik
Keyword(s):  
Phase Transition ◽  
Gravitational Waves ◽  
Ground State ◽  
Qcd Phase Transition

Review of the possible role of self-ordering scalar fields in production of a stochastic background of gravitational waves

2015 ◽  
Vol 24 (04) ◽  
pp. 1541005
Author(s):  
James B. Dent
Keyword(s):  
Phase Transition ◽  
Scalar Field ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Scalar Fields ◽  
Inflationary Cosmology ◽  
Tensor Power ◽  
Stochastic Background ◽  
Gravitational Wave Background

A primordial gravitational wave background is a hallmark of inflationary cosmology. The recent announcement made by the BICEP2 collaboration of a possible measurement of B-mode polarization of the CMB on degree scales has produced an abundance of ideas and speculations on how such a signal constrains the inflationary paradigm, or possible alternative mechanisms of gravitational wave production. Here the possibility of a contribution to the gravitational wave background from the relaxation of a scalar field after a global phase transition is reviewed. The general contribution to the overall power is shown, and it is then demonstrated that if the BICEP2 result were to hold, this mechanism could at best produce a very small fraction of the measured tensor power.

scholarly journals Gravitational waves from hidden QCD phase transition

2017 ◽  
Vol 96 (7) ◽  
Author(s):  
Mayumi Aoki ◽  
Hiromitsu Goto ◽  
Jisuke Kubo
Keyword(s):  
Phase Transition ◽  
Gravitational Waves ◽  
Qcd Phase Transition

scholarly journals Imprints of the QCD phase transition on the spectrum of gravitational waves

2011 ◽  
Vol 83 (6) ◽  
Author(s):  
Simon Schettler ◽  
Tillmann Boeckel ◽  
Jürgen Schaffner-Bielich
Keyword(s):  
Phase Transition ◽  
Gravitational Waves ◽  
Qcd Phase Transition

scholarly journals Can we observe the QCD phase transition-generated gravitational waves through pulsar timing arrays?

2021 ◽  
Vol 104 (4) ◽  
Author(s):  
Axel Brandenburg ◽  
Emma Clarke ◽  
Yutong He ◽  
Tina Kahniashvili
Keyword(s):  
Phase Transition ◽  
Gravitational Waves ◽  
Qcd Phase Transition ◽  
Pulsar Timing
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