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

Addazi, Andrea ; Marcianò, Antonino and Pasechnik, Roman LU (2019) In Chinese Physics C 43(6).
Abstract
We propose a novel mechanism for the production of gravitational waves in the early Universe that originates from the relaxation processes induced by the QCD phase transition. While the energy density of the quark-gluon mean-field is monotonously decaying in real time, its pressure undergoes a series of violent oscillations at the characteristic QCD time scales that generate a primordial multi-peaked gravitational waves signal in the radio frequencies' domain. The signal is an echo of the QCD phase transition that is accessible by planned measurements at the FAST and SKA telescopes.
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Chinese Physics C
volume
43
issue
6
article number
065101
publisher
IOP Publishing
external identifiers
  • scopus:85067823088
ISSN
1674-1137
DOI
10.1088/1674-1137/43/6/065101
language
English
LU publication?
yes
id
817e06ee-d645-4e74-b652-4ae1aa11ea71
date added to LUP
2019-05-27 13:35:16
date last changed
2024-04-16 08:36:02
@article{817e06ee-d645-4e74-b652-4ae1aa11ea71,
  abstract     = {{We propose a novel mechanism for the production of gravitational waves in the early Universe that originates from the relaxation processes induced by the QCD phase transition. While the energy density of the quark-gluon mean-field is monotonously decaying in real time, its pressure undergoes a series of violent oscillations at the characteristic QCD time scales that generate a primordial multi-peaked gravitational waves signal in the radio frequencies' domain. The signal is an echo of the QCD phase transition that is accessible by planned measurements at the FAST and SKA telescopes.}},
  author       = {{Addazi, Andrea and Marcianò, Antonino and Pasechnik, Roman}},
  issn         = {{1674-1137}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{6}},
  publisher    = {{IOP Publishing}},
  series       = {{Chinese Physics C}},
  title        = {{Time-crystal ground state and production of gravitational waves from QCD phase transition}},
  url          = {{http://dx.doi.org/10.1088/1674-1137/43/6/065101}},
  doi          = {{10.1088/1674-1137/43/6/065101}},
  volume       = {{43}},
  year         = {{2019}},
}