Numerical study of the Roberge-Weiss transition
Numerical study of the Roberge-Weiss transition
复制标题
罗伯格-韦斯转变的数值研究
DOI:
10.1103/physrevd.107.014508
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
A. Nakamura 他
中科院分区:
文献类型:
--
作者:
V. Bornyakov;V. Gerasimeniuk;A. Nakamura 他
We study the Roberge-Weiss phase transition numerically. The phase transition is associated with the discontinuities in the quark-number density at specific values of imaginary quark chemical potential. We parametrize the quark-number densityby the polynomial fit function to compute the canonical partition functions. We demonstrate that this approach provides a good framework for analyzing lattice QCD data at finite density and a high temperature. We show numerically that, at high temperature, the Lee-Yang zeros lie on the negative real semiaxis provided that the high-quark-number contributions to the grand canonical partition function are taken into account. These Lee-Yang zeros have nonzero linear density, which signals the Roberge-Weiss phase transition. We demonstrate that this density agrees with the quark-number density discontinuity at the transition line.
DOI:
10.22323/1.363.0271
发表时间:
2020
期刊:
--
影响因子:
--
作者:
A. Nakamura;V. Bornyakov;D. Boyda;V. Goy;A. Molochkov
通讯作者:
A. Molochkov
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
T. Takaishi;P. Forcrand;A. Nakamura
通讯作者:
A. Nakamura