标题： CFL夸克物质中的新相 显示英文标题

标题： New phases in CFL quark matter

摘要： 我们考虑密集夸克物质基态中伪戈德斯通激发态的平方质量的$\alpha_s$修正。 我们表明这些贡献倾向于使真空不稳定，导致夸克质量作为函数的夸克物质出现出人意料的复杂相结构，即使对于小的$\alpha_s$也是如此。 特别是我们发现了两种新的CFL夸克物质相，可能与现实世界相关，其中QCD角度 theta-bar 等于 pi/2。 显示英文摘要

摘要： We consider order $\alpha_s$ corrections to the squared masses of the pseudo-Goldstone excitations about the ground state of dense quark matter. We show that these contributions tend to destabilize the vacuum, leading to a surprisingly complex phase structure for quark matter as a function of quark mass, even for small $\alpha_s$. In particular we find two new phases of CFL quark matter possibly relevant for the real world, for which the QCD angle theta-bar equals pi/2.