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arXiv 1605.04526hep-thhep-phnucl-th
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强磁场中从逆磁催化到延迟磁催化

From Inverse to Delayed Magnetic Catalysis in Strong Magnetic Field

Shijun Mao

摘要:

研究了Nambu-Jona-Lasinio模型中磁场对手征相变的影响。与只包含夸克的平均场近似相比,在模型中加入介子作为量子涨落,导致了有限温度下从逆磁催化到延迟磁催化的转变,并延迟了有限重子化学势下的转变.临界端点的位置与磁场的大小呈非单调关系。

英文摘要:

We study magnetic field effect on chiral phase transition in a Nambu--Jona-Lasinio model. In comparison with mean field approximation containing quarks only, including mesons as quantum fluctuations in the model leads to a transition from inverse to delayed magnetic catalysis at finite temperature and delays the transition at finite baryon chemical potential. The location of the critical end point depends on the the magnetic field non-monotonously.

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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