Holographic quarkyonic matter

A bstract We point out a new configuration in the Witten-Sakai-Sugimoto model, allowing baryons in the pointlike approximation to coexist with fundamental quarks. The resulting phase is a holographic realization of quarkyonic matter, which is predicted to occur in QCD at a large number of colors, an...

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Bibliographic Details
Published in:The journal of high energy physics 2020-09, Vol.2020 (9), p.1-38, Article 112
Main Authors: Kovensky, Nicolas, Schmitt, Andreas
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
Elementary Particles
Gauge-gravity correspondence
Phase Diagram of QCD
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
String Theory
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Summary:A bstract We point out a new configuration in the Witten-Sakai-Sugimoto model, allowing baryons in the pointlike approximation to coexist with fundamental quarks. The resulting phase is a holographic realization of quarkyonic matter, which is predicted to occur in QCD at a large number of colors, and possibly plays a role in real-world QCD as well. We find that holographic quarkyonic matter is chirally symmetric and that, for large baryon chemical potentials, it is energetically preferred over pure nuclear matter and over pure quark matter. The zero-temperature transition from nuclear matter to the quarkyonic phase is of first order in the chiral limit and for a realistic pion mass. For pion masses far beyond the physical point we observe a quark-hadron continuity due to the presence of quarkyonic matter.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP09(2020)112