论文标题
两色QCD的多组分超流量以有限密度的临近顺序
Multicomponent superfluidity in two-color QCD at finite density at next-to-leading order
论文作者
论文摘要
在本文中，当diquark化学势（$μ__{b} $）等于同胞素化学势（$μ__{i} $）时，我们使用手性扰动理论研究了两种质量QCD。对于大于物理亲质量的化学电势，该系统处于具有尖旋和diquarks的多组分超流体相。我们在存在外部多组分超氟源源的情况下使用$χ$ pt构建单循环电势，并使用有效潜力来计算手性冷凝物，多组分超级流晶冷凝物和（多组分）超级流体密度。我们还发现，在近代领先的顺序下，从正常相到多组分凝结相的临界化学潜力和相变的顺序。相变保持二阶（如在树级时），关键的化学电位等于单环重新归一化的diquark（或TIQUARK）质量。
In this paper, we study two-color, two-flavor QCD using chiral perturbation theory at next-to-leading order when the diquark chemical potential ($μ_{B}$) is equal to the isospin chemical potential ($μ_{I}$). For chemical potentials larger than the physical pion mass, the system is in a multicomponent superfluid phase with both pions and diquarks. We construct the one-loop effective potential using $χ$PT in the presence of an external multicomponent superfluid source and use the effective potential to calculate the chiral condensate, the multicomponent superfluid condensate and the (multicomponent) superfluid density. We also find the critical chemical potential and the order of the phase transition from the normal phase to the multicomponent condensed phase at next-to-leading order. The phase transition remains second order (as at tree-level) and the critical chemical potential is equal to the one-loop renormalized diquark (or pion) mass.
