Critical point in the phase diagram of primordial quark-gluon matter from black hole physics

被引：113

作者：

Critelli, Renato ^{[1
]}

Noronha, Jorge ^{[1
]}

Noronha-Hostler, Jacquelyn ^{[2
,3
]}

Portillo, Israel ^{[3
]}

Ratti, Claudia ^{[3
]}

Rougemont, Romulo ^{[4
]}

机构：

[1] Univ Sao Paulo, Inst Fis, Rua Matao 1371, BR-05508090 Sao Paulo, SP, Brazil

[2] Rutgers State Univ, Dept Phys & Astron, 136 Frelinghuysen Rd, Piscataway, NJ 08854 USA

[3] Univ Houston, Dept Phys, Houston, TX 77204 USA

[4] Univ Fed Rio Grande do Norte, Int Inst Phys, Campus Univ Lagoa Nova, BR-59078970 Natal, RN, Brazil

来源：

PHYSICAL REVIEW D | 2017年 / 96卷 / 09期

基金：

巴西圣保罗研究基金会; 美国国家科学基金会;

关键词：

FREEZE-OUT CONDITIONS; EQUATION-OF-STATE; QUANTUM CHROMODYNAMICS; HIGH-TEMPERATURE; QCD; COLLISIONS; PERSPECTIVE; PLASMA; MODEL;

D O I：

10.1103/PhysRevD.96.096026

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Strongly interacting matter undergoes a crossover phase transition at high temperatures T similar to 10(12) K and zero net-baryon density. A fundamental question in the theory of strong interactions, QCD, is whether a hot and dense system of quarks and gluons displays critical phenomena when doped with more quarks than antiquarks, where net-baryon number fluctuations diverge. Recent lattice QCD work indicates that such a critical point can only occur in the baryon dense regime of the theory, which defies a description from first principles calculations. Here we use the holographic gauge/gravity correspondence to map the fluctuations of baryon charge in the dense quark-gluon liquid onto a numerically tractable gravitational problem involving the charge fluctuations of holographic black holes. This approach quantitatively reproduces ab initio results for the lowest order moments of the baryon fluctuations and makes predictions for the higher-order baryon susceptibilities and also for the location of the critical point, which is found to be within the reach of heavy-ion collision experiments.

引用

页数：22

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