论文标题
磁场对Pion超流体的影响
Magnetic field effect on pion superfluid
论文作者
论文摘要
磁场对Pauli-Villars正规化NJL模型的框架研究了对Pion超流相变的磁场效应。我们不用直接处理带电的Pion冷凝物，而是使用Goldstone定理（无质量的Goldstone Boson $π^+$）来确定Pion Superfluid相的发作，并在磁场，温度，Isospin和Baryon化学势空间中获得相图。在弱磁场上，可以在分析上证明，Pion超氟相变的关键同胞化学潜力等于磁场中$π^+$梅森的质量。 Pion超流相位延伸到较高的同素化学势，并在较高的温度和外部磁场下生存。
Magnetic field effect on pion superfluid phase transition is investigated in frame of a Pauli-Villars regularized NJL model. Instead of directly dealing with charged pion condensate, we apply the Goldstone's theorem (massless Goldstone boson $π^+$) to determine the onset of pion superfluid phase, and obtain the phase diagram in magnetic field, temperature, isospin and baryon chemical potential space. At weak magnetic field, it is analytically proved that the critical isospin chemical potential of pion superfluid phase transition is equal to the mass of $π^+$ meson in magnetic field. The pion superfluid phase is retarded to higher isospin chemical potential, and can survive at higher temperature and higher baryon chemical potential under external magnetic field.
