Centro Multidisciplinar de Astrofísica, Departamento de Física, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais 1, 1049-001 Lisboa, Portugal.
Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Phys Rev Lett. 2014 Aug 29;113(9):091102. doi: 10.1103/PhysRevLett.113.091102. Epub 2014 Aug 28.
We discuss a new type of QCD phenomenon induced in curved space. In the QCD vacuum, a mass-gap of Dirac fermions is attributed to the spontaneous breaking of chiral symmetry. If the curvature is positive large, the chiral condensate melts but a chiral invariant mass-gap can still remain, which we name the chiral gap effect in curved space. This leads to decoupling of quark deconfinement which implies a view of black holes surrounded by a first-order QCD phase transition.
我们讨论了在弯曲时空中产生的一种新型 QCD 现象。在 QCD 真空中，狄拉克费米子的质量间隙归因于手征对称性的自发破缺。如果曲率为正且很大，手征凝聚物会融化，但仍然可以保留手征不变的质量间隙，我们称之为弯曲时空中的手征间隙效应。这导致夸克退禁闭的解耦，这意味着黑洞周围存在一级 QCD 相变。
