Speed of sound and liquid-gas phase transition in nuclear matter

被引：7

作者：

He, Wei-bo ^{[1
,2
]}

Shao, Guo-yun ^{[1
]}

Xie, Chong -long ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Phys, MOE Key Lab Nonequilibrium Synth & Modulat Condens, Xian 710049, Peoples R China

[2] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

来源：

PHYSICAL REVIEW C | 2023年 / 107卷 / 01期

基金：

中国国家自然科学基金;

关键词：

EQUATION-OF-STATE; QCD; MULTIFRAGMENTATION; DIAGRAM; MODEL;

D O I：

10.1103/PhysRevC.107.014903

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We investigate the speed of sound in nuclear matter at finite temperature and density (chemical potential) in the nonlinear Walecka model. The numerical results suggest that the behaviors of sound speed are closely related to the the nuclear liquid-gas (LG) phase transition and the associated spinodal structure. The adiabatic sound speed is nonzero at the critical endpoint (CEP) in the mean-field approximation. We further derive the boundary of vanishing sound velocity in the temperature-density phase diagram, and point out the region where the sound wave equation is broken. The distinction between the speed of sound in nuclear matter and that in quark matter contains important information about the equation of state of strongly interacting matter at intermediate and high density. We also formulate the relations between differently defined speeds of sound using the fundamental thermodynamic relations.

引用

页数：10

共 83 条

[1] Induced gravitational waves as a cosmological probe of the sound speed during the QCD phase transition [J].

Abe, Katsuya T. ;

Tada, Yuichiro ;

Ueda, Ikumi .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2021, (06)

[2] Transport coefficients in the Polyakov quark meson coupling model: A relaxation time approximation [J].

Abhishek, Aman ;

Mishra, Hiranmaya ;

Ghosh, Sabyasachi .

PHYSICAL REVIEW D, 2018, 97 (01)

[3] Nonmonotonic Energy Dependence of Net-Proton Number Fluctuations [J].

Adam, J. ;

Adamczyk, L. ;

Adams, J. R. ;

Adkins, J. K. ;

Agakishiev, G. ;

Aggarwal, M. M. ;

Ahammed, Z. ;

Alekseev, I ;

Anderson, D. M. ;

Aparin, A. ;

Aschenauer, E. C. ;

Ashraf, M. U. ;

Atetalla, F. G. ;

Attri, A. ;

Averichev, G. S. ;

Bairathi, V ;

Barish, K. ;

Behera, A. ;

Bellwied, R. ;

Bhasin, A. ;

Bielcik, J. ;

Bielcikova, J. ;

Bland, L. C. ;

Bordyuzhin, I. G. ;

Brandenburg, J. D. ;

Brandin, A., V ;

Butterworth, J. ;

Caines, H. ;

Sanchez, M. Calderon de la Barca ;

Cebra, D. ;

Chakaberia, I ;

Chaloupka, P. ;

Chan, B. K. ;

Chang, F-H ;

Chang, Z. ;

Chankova-Bunzarova, N. ;

Chatterjee, A. ;

Chen, D. ;

Chen, J. ;

Chen, J. H. ;

Chen, X. ;

Chen, Z. ;

Cheng, J. ;

Cherney, M. ;

Chevalier, M. ;

Choudhury, S. ;

Christie, W. ;

Chu, X. ;

Crawford, H. J. ;

Csanad, M. .

PHYSICAL REVIEW LETTERS, 2021, 126 (09)

[4] Quasiparticle theory of transport coefficients for hadronic matter at finite temperature and baryon density [J].

Albright, M. ;

Kapusta, J. I. .

PHYSICAL REVIEW C, 2016, 93 (01)

[5] On the Sound Speed in Neutron Stars [J].

Altiparmak, Sinan ;

Ecker, Christian ;

Rezzolla, Luciano .

ASTROPHYSICAL JOURNAL LETTERS, 2022, 939 (02)

[6]

[Anonymous], 2015, POS CPOD2014, DOI DOI 10.22323/1.217.0019

[7] The order of the quantum chromodynamics transition predicted by the standard model of particle physics [J].

Aoki, Y. ;

Endrodi, G. ;

Fodor, Z. ;

Katz, S. D. ;

Szabo, K. K. .

NATURE, 2006, 443 (7112) :675-678

[8] Skewness and kurtosis of net baryon-number distributions at small values of the baryon chemical potential [J].

Bazavov, A. ;

Ding, H. -T. ;

Hegde, P. ;

Kaczmarek, O. ;

Karsch, F. ;

Laermann, E. ;

Mukherjee, Swagato ;

Ohno, H. ;

Petreczky, P. ;

Rinaldi, E. ;

Sandmeyer, H. ;

Schmidt, C. ;

Schroeder, Chris ;

Sharma, S. ;

Soeldner, W. ;

Soltz, R. A. ;

Steinbrecher, P. ;

Vranas, P. M. .

PHYSICAL REVIEW D, 2017, 96 (07)

[9] Equation of state in (2+1)-flavor QCD [J].

Bazavov, A. ;

Bhattacharya, Tanmoy ;

DeTar, C. ;

Ding, H. -T. ;

Gottlieb, Steven ;

Gupta, Rajan ;

Hegde, P. ;

Heller, U. M. ;

Karsch, F. ;

Laermann, E. ;

Levkova, L. ;

Mukherjee, Swagato ;

Petreczky, P. ;

Schmidt, C. ;

Schroeder, C. ;

Soltz, R. A. ;

Soeldner, W. ;

Sugar, R. ;

Wagner, M. ;

Vranas, P. .

PHYSICAL REVIEW D, 2014, 90 (09)

[10] Viscosity, nonconformal equation of state, and sound velocity in Landau hydrodynamics [J].

Biswas, Deeptak ;

Deka, Kishan ;

Jaiswal, Amaresh ;

Roy, Sutanu .

PHYSICAL REVIEW C, 2020, 102 (01)

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