Cold Nuclear Matter In Holographic QCD

By M. Rozali, Hsien-Hang Shieh, Mark Van Raamsdonk, Jackson M. S. Wu. 2007

169 citations recorded by the source corpus.

We study the Sakai-Sugimoto model of holographic QCD at zero temperature and finite chemical potential. We find that as the baryon chemical potential is increased above a critical value, there is a phase transition to a nuclear matter phase characterized by a condensate of instantons on the probe D-branes in the string theory dual. As a result of electrostatic interactions between the instantons, this condensate expands towards the UV when the chemical potential is increased, giving a holographic version of the expansion of the Fermi surface. We argue based on properties of instantons that the nuclear matter phase is necessarily inhomogeneous to arbitrarily high density. This suggests an explanation of the "chiral density wave" instability of the quark Fermi surface in large N_c QCD at asymptotically large chemical potential. We study properties of the nuclear matter phase as a function of chemical potential beyond the transition and argue in particular that the model can be used to make a semi-quantitative prediction of the binding energy per nucleon for nuclear matter in ordinary QCD.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/071d7746c9ec2e86b7ecf281565cb717f60a09a3

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Citations in the corpus

Inverse magnetic catalysis in dense holographic matter (2010, methodology): “To get an idea about the possible onset of a normal baryon density we have computed the zero-temperature constituent quark mass which, in the setup with D4 branes, is m(μ, b) = u0(μ, b)/3 [40, 58, 59] (in the same dimensionless units as μ), and have plotted the (thin dotted) line μ = u0(μ, b)/3 in f”
Towards strange metallic holography (2009, background): “For hadronic systems at finite density, it has been noted that baryons can polarize in this way [63, 64, 65].”
Lectures on holographic methods for condensed matter physics (2009, unknown): “(23)Recent works in this direction include [127, 128, 129, 130, 131, 132, 133, 134].”