Holographic Magnetic Phase Transition

Details Holographic Magnetic Phase Transition Holographic Magnetic Phase Transition

2009-06-21

arxiv.org/abs/0906.3892v1

Phys.Rev.D80:066007,2009

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, 6 figures

Scientific paper

10.1103/PhysRevD.80.066007

We study four-dimensional interacting fermions in a strong magnetic field, using the holographic Sakai-Sugimoto model of intersecting D4 and D8 branes in the deconfined, chiral-symmetric parallel phase. We find that as the magnetic field is varied, while staying in the parallel phase, the fermions exhibit a first-order phase transition in which their magnetization jumps discontinuously. Properties of this transition are consistent with a picture in which some of the fermions jump to the lowest Landau level. Similarities to known magnetic phase transitions are discussed.

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