电导率之间的精确关系及其与 QCD 物质化学成分的联系

IF 3.1 2区 物理与天体物理 Q1 Physics and Astronomy
Jan A. Fotakis, Jakob E. Lohr, Carsten Greiner
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引用次数: 0

摘要

我们提出了强相互作用物质的扩散系数或电导率κqq′/T=σqq′之间的精确关系。我们证明,一旦知道两种不同电荷表示的对角线项,一旦等空对称性适用,对角线外系数就是对角线项的函数。作为一个重要的例子,我们根据晶格量子色动力学的现有计算推断出电导率,并论证了这些计算在实现它们的近似条件下会受到影响。此外,我们还论证了相对于守恒夸克味道的电导率表示可能会让我们更深入地了解强相互作用物质的化学组成。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Exact relations between the conductivities and their connection to the chemical composition of QCD matter

Exact relations between the conductivities and their connection to the chemical composition of QCD matter
We present exact relations between the diffusion coefficients or conductivities, κqq/T=σqq, of strongly interacting matter. We show that once the diagonal entries are known in two different charge representations, the off-diagonal coefficients are functions of the diagonal entries once isospin symmetry applies. As an important example, we infer the conductivities on the basis of available calculations from lattice quantum chromodynamics and argue that these computations suffer under the approximations made to achieve them. Further, we argue that the representation of the conductivities with respect to the conserved quark flavors may deliver more insight into the chemical composition of strongly interacting matter.
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来源期刊
Physical Review C
Physical Review C 物理-物理:核物理
CiteScore
5.70
自引率
35.50%
发文量
0
审稿时长
1-2 weeks
期刊介绍: Physical Review C (PRC) is a leading journal in theoretical and experimental nuclear physics, publishing more than two-thirds of the research literature in the field. PRC covers experimental and theoretical results in all aspects of nuclear physics, including: Nucleon-nucleon interaction, few-body systems Nuclear structure Nuclear reactions Relativistic nuclear collisions Hadronic physics and QCD Electroweak interaction, symmetries Nuclear astrophysics
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