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- W4315881317 abstract "The speed of sound in QCD matter at finite temperature and density is investigated within the Polyakov loop improved Nambu--Jona-Lasinio (PNJL) model. The spinodal structure associated with the chiral first-order chiral phase transition is considered to describe the continuous variation of the speed of sound. The behaviors of the squared sound speed in different phases, including the stable, metastable and unstable phases, are derived. The relation between speed of sound and QCD phase transitions is systematically explored. In particular, the boundary of vanishing sound velocity is derived in the temperature-density phase diagram, and the region where the sound wave equation being broken is pointed out. Some interesting features of speed of sound under different definitions are also discussed." @default.
- W4315881317 created "2023-01-13" @default.
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- W4315881317 date "2023-01-10" @default.
- W4315881317 modified "2023-10-01" @default.
- W4315881317 title "Speed of sound in QCD matter at finite temperature and density]{Speed of sound in QCD matter at finite temperature and density" @default.
- W4315881317 doi "https://doi.org/10.48550/arxiv.2301.04282" @default.
- W4315881317 hasPublicationYear "2023" @default.
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