Phases and condensates in zero-temperature QCD at finite μ I and μ S

I discuss pion and kaon condensation and the the properties of the phases of QCD at finite isospin chemical potential μ I and strangeness chemical potential μ S at zero temperature using three-flavor chiral perturbation theory. Electromagnetic effects are included in the calculation of the phase dia...

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Bibliographic Details
Main Author: Andersen, Jens O.
Format: Conference Proceeding
Language:English
Subjects:
Chemical potential
Chiral dynamics
Condensates
Flavor (particle physics)
Kaons
Perturbation theory
Phase diagrams
Phases
Pions
Quantum chromodynamics
Strangeness
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Summary:I discuss pion and kaon condensation and the the properties of the phases of QCD at finite isospin chemical potential μ I and strangeness chemical potential μ S at zero temperature using three-flavor chiral perturbation theory. Electromagnetic effects are included in the calculation of the phase diagram, which implies that the charged meson condensed phases become superconducting phases of QCD with a massive photon via the Higgs mechanism. Without electromagnetic effects, we show results for the light quark condensate and the pion condensate as functions of μ I at next-to-leading (NLO) order in the lowenergy expansion. The results are compared with recent lattice simulations and by including the NLO corrections, one obtains very good agreement.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/202227407003