Holographic Magnetic Phase Transition

Abstract

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.

9 pages, 6 figures

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• Holographic Metamagnetism, Quantum Criticality, and Crossover Behavior
• Inverse magnetic catalysis in field theory and gauge-gravity duality
• Holographic baryonic matter in a background magnetic field
• Magnetic Field Induced Quantum Criticality via new Asymptotically AdS_5 Solutions
• Quantum Criticality via Magnetic Branes
• A Review of Magnetic Phenomena in Probe-Brane Holographic Matter
• Superfluid and Metamagnetic Phase Transitions in $\omega$-deformed Gauged Supergravity
• D-instantons and multiparticle production in N=4 SYM
• Charged Magnetic Brane Correlators and Twisted Virasoro Algebras
• External Fields and the Dynamics of Fundamental Flavours in Holographic Duals of Large N Gauge Theories