Quantum oscillations and black hole ringing

@article{Denef2009QuantumOA,
  title={Quantum oscillations and black hole ringing},
  author={Frederik Denef and Sean A. Hartnoll and Subir Sachdev},
  journal={Physical Review D},
  year={2009},
  volume={80},
  pages={126016}
}
We show that strongly coupled field theories with holographic gravity duals at finite charge density and low temperatures can undergo de Haas-van Alphen quantum oscillations as a function of an external magnetic field. Exhibiting this effect requires computation of the one-loop contribution of charged bulk fermions to the free energy. The one-loop calculation is performed using a formula expressing determinants in black hole backgrounds as sums over quasinormal modes. At zero temperature, the… 

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