Momentum space topology of QCD

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Abstract

We discuss the possibility to consider quark matter as the topological material. We consider hadronic phase (HP), the quark–gluon plasma phase (QGP), and the hypothetical color–flavor locking (CFL) phase. In those phases we identify the relevant topological invariants in momentum space. The formalism is developed, which relates those invariants and massless fermions that reside on vortices and at the interphases. This formalism is illustrated by the example of vortices in the CFL phase.

Original languageEnglish
Pages (from-to)264-287
Number of pages24
JournalAnnals of Physics
Volume393
DOIs
StatePublished - Jun 2018

Keywords

  • Bulk-boundary correspondence
  • Color superconductivity
  • Quark matter
  • Topological invariant in momentum space
  • Topological material

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