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相关论文: Two-flavor QCD at finite quark or isospin density

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We determine the (pseudo)critical lines of QCD with two degenerate staggered fermions at nonzero temperature and quark or isospin density, in the region of imaginary chemical potentials; analytic continuation is then used to prolongate to…

高能物理 - 格点 · 物理学 2013-05-30 P. Cea , L. Cosmai , M. D'Elia , A. Papa , F. Sanfilippo

We determine the pseudo-critical couplings at imaginary chemical potentials by high-statistics Monte Carlo simulations of QCD with four degenerate quarks at non-zero temperature and baryon density by the method of analytic continuationan.…

高能物理 - 格点 · 物理学 2010-12-23 P. Cea , L. Cosmai , M. D'Elia , A. Papa

We present preliminary results about the critical line of QCD with two degenerate staggered quarks at nonzero temperature and chemical potential, obtained by the method of analytic continuation. As in our previous studies with different…

高能物理 - 格点 · 物理学 2011-10-19 P. Cea , L. Cosmai , M. D'Elia , A. Papa , F. Sanfilippo

We determine the curvature of the pseudo-critical line of strong interactions by means of numerical simulations at imaginary chemical potentials. We consider $N_f=2+1$ stout improved staggered fermions with physical quark masses and the…

高能物理 - 格点 · 物理学 2015-06-23 Claudio Bonati , Massimo D'Elia , Marco Mariti , Michele Mesiti , Francesco Negro , Francesco Sanfilippo

We present results on the curvature of the critical line of QCD with 2+1 HISQ fermions at nonzero temperature and quark density obtained by analytic continuation from imaginary chemical potentials. Monte Carlo simulations are performed by…

高能物理 - 格点 · 物理学 2014-10-10 Paolo Cea , Leonardo Cosmai , Alessandro Papa

We revisit the determination of the pseudo-critical line of QCD with four degenerate quarks at non-zero temperature and baryon density by the method of analytic continuation. We determine the pseudo-critical couplings at imaginary chemical…

高能物理 - 格点 · 物理学 2015-03-13 Paolo Cea , Leonardo Cosmai , Massimo D'Elia , Alessandro Papa

We determine the continuum limit of the curvature of the pseudocritical line of QCD with $n_f$=2+1 staggered fermions at nonzero temperature and quark density. We perform Monte Carlo simulations at imaginary baryon chemical potentials,…

高能物理 - 格点 · 物理学 2016-01-27 Paolo Cea , Leonardo Cosmai , Alessandro Papa

We investigate the phase diagram in the temperature, imaginary chemical potential plane for QCD with three degenerate quark flavors using Wilson type fermions. While more expensive than the staggered fermions used in past studies in this…

高能物理 - 格点 · 物理学 2013-12-05 Andrei Alexandru , Anyi Li

We determine the curvature of the (pseudo)critical line of QCD with $n_f$=2+1 staggered fermions at nonzero temperature and quark density, by analytic continuation from imaginary chemical potentials. Monte Carlo simulations are performed…

高能物理 - 格点 · 物理学 2014-04-30 Paolo Cea , Leonardo Cosmai , Alessandro Papa

We study QCD at nonzero temperature and baryon density in the framework of the analytic continuation from imaginary chemical potential. We carry out simulations of QCD with four flavor of staggered fermions, and reconstruct the phase…

高能物理 - 格点 · 物理学 2009-11-07 M. D'Elia , M. -P. Lombardo

We study quenched QCD at finite chemical potential, $\mu_I$, for the third component of isospin and quenched two-colour QCD at finite chemical potential, $\mu$, for quark number. In contrast to the quenched approximation to QCD at finite…

高能物理 - 格点 · 物理学 2009-11-07 J. B. Kogut , D. K. Sinclair

We determine the pseudo-critical line in the temperature - chemical potential plane of 2-color QCD by direct Monte Carlo simulations and by analytic continuation from imaginary chemical potential.

高能物理 - 格点 · 物理学 2008-11-26 Paolo Cea , Leonardo Cosmai , Massimo D'Elia , Alessandro Papa

A new method of employing an isospin chemical potential for QCD-like theories with different number of colors, number of fermion flavors, and in different fermion representations is proposed. The isospin chemical potential, which can be…

高能物理 - 格点 · 物理学 2013-05-30 Michael I. Buchoff

We study QCD with (2+1)-HISQ fermions at nonzero temperature and nonzero imaginary baryon chemical potential. Monte Carlo simulations are performed using the MILC code along the line of constant physics with a light to strange mass ratio of…

高能物理 - 格点 · 物理学 2015-10-26 Paolo Cea , Leonardo Cosmai , Alessandro Papa

We use the two-flavor linear sigma model with quarks to study the phase structure of isospin asymmetric matter at zero temperature. The meson degrees of freedom provide the mean field chiral- and isospin-condensates on top of which we…

高能物理 - 唯象学 · 物理学 2023-05-03 Alejandro Ayala , Aritra Bandyopadhyay , Ricardo L. S. Farias , Luis A. Hernández , José Luis Hernández

The QCD phase diagram is studied in the lattice QCD simulation with the imaginary chemical potential approach. We employ a clover-improved Wilson fermion action of two-flavors and a renormalization-group improved gauge action, and perform…

高能物理 - 格点 · 物理学 2011-07-04 Keitaro Nagata , Atsushi Nakamura

In this paper, we consider two-flavor QCD at zero temperature and finite isospin chemical potential ($\mu_I$) using a model-independent analysis within chiral perturbation theory at next-to-leading order. We calculate the effective…

高能物理 - 唯象学 · 物理学 2020-11-11 Prabal Adhikari , Jens O. Andersen

In this paper we study the finite temperature SU(2) gauge theory with staggered fermions for non-zero imaginary and real chemical potential. The method of analytical continuation of Monte Carlo results from imaginary to real chemical…

高能物理 - 格点 · 物理学 2009-11-10 P. Giudice , A. Papa

We investigate the phase structure of three-flavor QCD in the presence of finite quark chemical potential $\mu/T\lesssim1.2$ by using the non-perturbatively $O(a)$ improved Wilson fermion action on lattices with a fixed temporal extent…

高能物理 - 格点 · 物理学 2015-12-30 Xiao-Yong Jin , Yoshinobu Kuramashi , Yoshifumi Nakamura , Shinji Takeda , Akira Ukawa

We investigate the properties of QCD at finite isospin chemical potential at zero and non-zero temperatures. This theory is not affected by the sign problem and can be simulated using Monte-Carlo techniques. With increasing isospin chemical…

高能物理 - 格点 · 物理学 2018-04-18 Bastian B. Brandt , Gergely Endrodi , Sebastian Schmalzbauer
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