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arXiv 1609.04537hep-phhep-latnucl-th
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平行电场和磁场产生的手征介质

Chiral medium produced by parallel electric and magnetic fields

Marco Ruggieri, Guang Xiong Peng, Maxim Chernodub

摘要:

计算了平行电场和磁场背景下夸克物质手征对称性恢复的赝临界温度$T_c$。该场配置导致在时间尺度$τ$上产生手性介质,其特征在于由于热浴中的微观过程而平衡的手性密度的非零值。我们估计手征交叉点附近的弛豫时间$τ$约为$\approx 0.1-1$ fm/c,然后计算了场和手征介质对~ $T_c$的影响。我们发现$T_c$被手征介质中的外场降低。

英文摘要:

We compute (pseudo)critical temperature, $T_c$, of chiral symmetry restoration for quark matter in the background of parallel electric and magnetic fields. This field configuration leads to the production of a chiral medium on a time scale $τ$, characterized by a nonvanishing value of the chiral density that equilibrates due to microscopic processes in the thermal bath. We estimate the relaxation time $τ$ to be about $\approx 0.1-1$ fm/c around the chiral crossover; then we compute the effect of the fields and of the chiral medium on~$T_c$. We find $T_c$ to be lowered by the external fields in the chiral medium.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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