论文标题

确定有限化学势状态下状态晶格QCD方程

Determination of Lattice QCD Equation of state at a finite chemical potential

论文作者

Mitra, Sabarnya

论文摘要

$μ_b$中的所有订单的指数重新点播是一个有前途的方案,可以通过仅考虑在lattice QCD中泰勒的泰勒(Taylor)扩展中的前几个泰勒系数来捕获$μ_b$中所有订单的贡献。但是,这种方法受到$ n $ - 点相关函数$ d_n $的偏见估计的影响,其效果可能会大大阻碍有限密度QCD的探针。我们提出了一个公正的指数重新召集形式主义,除了保留QCD分区函数的全订单重新召开估算的原始形式外,还可以将泰勒系列重现至所需的订单。

Exponential resummation to all orders in $μ_B$ is a promising scheme which can capture contributions to all orders in $μ_B$ by considering only the first few Taylor coefficients in the Taylor expansion of thermodynamic observables in lattice QCD. This approach however, gets affected by biased estimates of $n$-point correlation functions $D_n$ whose effects can significantly hinder probe of finite density QCD. We present an unbiased exponential resummation formalism, which can reproduce the Taylor series up to the desired order in $μ_B$, besides retaining the original form of the all-order resummation estimate of QCD partition function.

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