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相关论文: Diquark condensation in two colour QCD

200 篇论文

We discuss random matrix models for the spontaneous breaking of both chiral and color symmetries at zero chemical potential and finite temperature. Exploring different Lorentz and gauge symmetric color structures of the random matrix…

高能物理 - 唯象学 · 物理学 2016-09-06 Benoit Vanderheyden , A. D. Jackson

The potential between two heavy-light mesons as a function of the heavy quark separation is calculated in quenched SU(3) lattice QCD. We study the case of heavy-light mesons with a static heavy quark and light quarks of mass close to the…

高能物理 - 格点 · 物理学 2008-11-26 UKQCD Collaboration , C. Michael , P. Pennanen

Thermal color superconducting phase transitions in high density three-flavor quark matter are investigated in the Ginzburg-Landau approach. Effects of nonzero strange quark mass, electric and color charge neutrality, and direct instantons…

高能物理 - 唯象学 · 物理学 2009-11-10 K. Iida , T. Matsuura , M. Tachibana , T. Hatsuda

Lattice QCD is used to calculate the potential between a static quark and anti-quark in the presence of a finite density of pi^+'s. Correlation functions of multiple pi^+'s are used in conjunction with Wilson-loop correlators to determine…

高能物理 - 格点 · 物理学 2009-02-23 William Detmold , Martin J. Savage

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

We present continuum extrapolated lattice QCD results for up to fourth-order diagonal and off-diagonal quark number susceptibilities in the high temperature region of 300-700 MeV. Lattice QCD calculations are performed using 2+1 flavors of…

高能物理 - 格点 · 物理学 2015-11-04 H. -T. Ding , Swagato Mukherjee , H. Ohno , P. Petreczky , H. -P. Schadler

QCD at non-zero chemical potential ($\mu$) for quark number has a complex fermion determinant and thus standard simulation methods for lattice QCD cannot be applied. We therefore simulate this theory using the Complex-Langevin algorithm…

高能物理 - 格点 · 物理学 2015-10-22 D. K. Sinclair , J. B. Kogut

The study of systems as diverse as the cores of neutron stars and heavy-ion collision experiments requires the understanding of the phase structure of QCD at non-zero temperature, T, and chemical potential, mu_q. We review some of the…

高能物理 - 格点 · 物理学 2009-11-11 C. R. Allton , S. Ejiri , S. J. Hands , O. Kaczmarek , F. Karsch , E. Laermann , Ch. Schmidt

QCD in two dimensions is investigated using the improved fermionic lattice Hamiltonian proposed by Luo, Chen, Xu, and Jiang. We show that the improved theory leads to a significant reduction of the finite lattice spacing errors. The quark…

高能物理 - 格点 · 物理学 2016-08-15 Jun-Qin Jiang , Xiang-Qian Luo , Zhong-Hao Mei , Hamza Jirari , Helmut Kröger , Chi-Min Wu

We study, by numerical simulations on a lattice, the behaviour of the gauge-invariant nonlocal quark condensates in the QCD vacuum both in the quenched approximation and with four flavours of dynamical staggered fermions. The correlation…

高能物理 - 格点 · 物理学 2008-11-26 M. D'Elia , A. Di Giacomo , E. Meggiolaro

We explore the phase structure of two-color and two-flavor QCD in the space of the quark chemical potential \mu_q and the isospin chemical potential \mu_I. Using a mean-field model we calculate the chiral and diquark condensates, \sigma and…

高能物理 - 唯象学 · 物理学 2008-11-26 Kenji Fukushima , Kei Iida

In this talk I review the current status of lattice QCD calculations at nonzero temperature and density. I focus on the QCD phase structure and bulk QCD thermodynamics at zero and nonzero chemical potentials.

高能物理 - 格点 · 物理学 2017-02-02 Heng-Tong Ding

We investigate the phase diagram of QCD with heavy quarks at finite temperature and chemical potential in the context of background field methods. In particular, we use a massive extension of the Landau-DeWitt gauge which is motivated by…

高能物理 - 理论 · 物理学 2015-07-09 Urko Reinosa , Julien Serreau , Matthieu Tissier

We study the phase diagram of quark matter at finite temperature (T) and chemical potential (mu) in the strong coupling region of lattice QCD for color SU(3). Baryon has effects to extend the hadron phase to a larger mu direction relative…

高能物理 - 格点 · 物理学 2008-11-26 A. Ohnishi , N. Kawamoto , K. Miura

After a brief introduction into basic aspects of the formulation of lattice regularized QCD at finite temperature and density we discuss our current understanding of the QCD phase diagram at finite temperature. We present results from…

高能物理 - 格点 · 物理学 2007-05-23 Frithjof Karsch

We revisit the static potential for the $Q Q \bar Q \bar Q$ system using SU(3) lattice simulations, studying both the colour singlets groundstate and first excited state. We consider geometries where the two static quarks and the two…

高能物理 - 格点 · 物理学 2017-11-01 P. Bicudo , M. Cardoso , O. Oliveira , P. J. Silva

We study the phase structures of charge neutral quark matter under the beta-equilibrium for a wide range of the quark-quark coupling strength within a four-Fermion model. A comprehensive and unified picture for the phase transitions from…

高能物理 - 唯象学 · 物理学 2008-11-26 H. Abuki , T. Kunihiro

The phase diagram of two-color QCD with a chiral chemical potential is studied on the lattice. The focus is on the confinement/deconfinement phase transition and the breaking/restoration of chiral symmetry. The simulations are carried out…

We investigate the possible ground states of QCD at asymptotic densities, where the theory is expected to exhibit color superconductivity. We characterize the color-flavor structure of possible diquark condensates, and find those that are…

高能物理 - 唯象学 · 物理学 2009-10-31 Nick Evans , James Hormuzdiar , Stephen D. H. Hsu , Myck Schwetz

With the use of the world-line formalism, the heavy-quark condensate in the SU(N)-QCD is evaluated for the cases when the next-to-1/r term in the quark-antiquark potential at short distances is either quadratic, or linear. In the former…

高能物理 - 唯象学 · 物理学 2010-02-23 Dmitri Antonov