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We review recent progress in lattice QCD at finite density. The phase diagram of QCD and the equation of state at finite temperature and density are discussed. In particular, we focus on the critical point terminating a first order phase…

高能物理 - 格点 · 物理学 2009-12-04 Shinji Ejiri

We investigate quark-gluon plasma at nonzero density by using two holographic models for QCD based on either brane or Einstein-Maxwell-dilaton actions. We determine the parameters of these models through a systematic statistical fitting…

高能物理 - 理论 · 物理学 2024-11-04 Niko Jokela , Matti Järvinen , Aleksi Piispa

To accurately determine the nuclear equation of state (EoS) at finite baryon chemical potential ($\mu_B$) remains a challenging yet essential goal in the study of QCD matter under extreme conditions. In this study, we develop a deep…

核理论 · 物理学 2025-01-20 Fu-Peng Li , Long-Gang Pang , Guang-You Qin

We will discuss here some of the recent results obtained from lattice simulations of QCD at non-zero temperature. Such calculations aim at a quantitative understanding of the thermodynamics of strongly interacting matter in equilibrium. We…

高能物理 - 格点 · 物理学 2010-11-01 Frithjof Karsch

We present a four-dimensional equation of state for strongly interacting matter at finite temperature and conserved charge densities, constructed using a deep neural network. It is designed for direct use in hybrid models of relativistic…

高能物理 - 唯象学 · 物理学 2026-05-22 Musfer Adzhymambetov

We describe recent three-flavor QCD lattice data for the pressure, speed of soun d and interaction measure at nonzero temperature and vanishing chemical potentia l within a virial expansion. For the deconfined phase we use a…

高能物理 - 唯象学 · 物理学 2009-11-09 S. Mattiello , W. Cassing

As a first step toward a multi-phase equation of state for dense water, we develop a temperature-dependent equation of state for dense water covering the liquid and plasma regimes and extending to the super-ionic and gas regimes. This…

地球与行星天体物理 · 物理学 2021-08-31 S. Mazevet , A. Licari , G. Chabrier , A. Y. Potekhin

We investigate the properties of the pion quasiparticle in the low-temperature phase of two-flavor QCD on the lattice with support from chiral effective theory. We find that the pion quasiparticle mass is significantly reduced compared to…

高能物理 - 格点 · 物理学 2015-11-18 Bastian B. Brandt , Anthony Francis , Harvey B. Meyer , Daniel Robaina

An extension of the relativistic density functional approach to the equation of state for strongly interacting matter is suggested which generalizes a recently developed modified excluded-volume mechanism to the case of temperature and…

核理论 · 物理学 2018-02-16 Stefan Typel , David Blaschke

Lattice QCD simulations have shown unequivocally that the transition from hadrons to quarks and gluons is a crossover when the baryon chemical potential is zero or small. Many model calculations predict the existence of a critical point at…

核理论 · 物理学 2022-08-17 J. I. Kapusta , C. Plumberg , T. Welle

We compare our 2+1 flavor, staggered QCD lattice results with a quasiparticle picture. We determine the pressure, the energy density, the baryon density, the speed of sound and the thermal masses as a function of T and $\mu_B$. For the…

高能物理 - 唯象学 · 物理学 2009-11-10 K. K. Szabo , A. I. Toth

We examine the isentropic QCD equation of state within a quasi-particle model being adjusted to first principle QCD calculations of two quark flavours. In particular, we compare with Taylor expansion coefficients of energy and entropy…

高能物理 - 唯象学 · 物理学 2009-11-11 Marcus Bluhm , Burkhard Kampfer , Robert Schulze , Daniel Seipt

We analyze recent results of SU(3) lattice QCD calculations with a phenomenological parametrization for the quark-gluon plasma equation of state based on a quasi-particle picture with massive quarks and gluons. At high temperature we obtain…

高能物理 - 唯象学 · 物理学 2008-11-26 Peter Levai , Ulrich Heinz

The status of lattice QCD investigations at high temperature is reviewed. After a short introduction into thermal QCD on the lattice we report on the present understanding of the phase diagram and the equation of state, in particular in…

高能物理 - 唯象学 · 物理学 2009-11-10 E. Laermann , O. Philipsen

In nucleus-nucleus collisions at relativistic energies a new kind of matter is created, the Quark-Gluon Plasma (QGP). The phase diagram of such matter and the chemical freeze-out points will be presented in connection to the pseudo-critical…

高能物理 - 唯象学 · 物理学 2022-12-27 Peter Braun-Munzinger , Anar Rustamov , Johanna Stachel

The properties of matter at finite baryon densities play an important role for the astrophysics of compact stars as well as for heavy ion collisions or the description of nuclear matter. Because of the sign problem of the quark determinant,…

高能物理 - 格点 · 物理学 2017-04-05 Owe Philipsen

The properties of quantum-chromo dynamics (QCD) nowadays are accessable by lattice QCD calculations at vanishing quark chemical potential $\mu_q$=0 but often lack a transparent physical interpretation. In this review we report about results…

高能物理 - 唯象学 · 物理学 2016-05-24 Hamza Berrehrah , Elena Bratkovskaya , Thorsten Steinert , Wolfgang Cassing

We investigate the properties of the pion quasiparticle in the low-temperature phase of two-flavor QCD on the lattice with support from chiral effective theory. We find that the pion quasiparticle mass is significantly reduced compared to…

高能物理 - 格点 · 物理学 2015-09-22 Bastian B. Brandt , Anthony Francis , Harvey B. Meyer , Daniel Robaina

We explore the quasiparticle model at finite chemical potential related to Ru-Keng Su's distinguished contributions to the topic. Besides, we discuss recent developments in the model, and in particular, one argues that the effective mass of…

高能物理 - 唯象学 · 物理学 2023-01-18 Wei-Liang Qian , Hong-Hao Ma , Shao-Yu Yin , Ping Wang

We discuss recent progress made studies of bulk thermodynamics of strongly interacting matter through lattice simulations of QCD with an almost physical light and strange quark mass spectrum. We present results on the QCD equation of state…

高能物理 - 格点 · 物理学 2008-11-26 Frithjof Karsch