Distance between Quantum States and Gauge-Gravity Duality

Jul 27, 2015
5 pages
Published in:
  • Phys.Rev.Lett. 115 (2015) 26, 261602
  • Published: Dec 22, 2015
e-Print:
Report number:
  • YITP-15-62,
  • IPMU15-0119

Citations per year

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Abstract: (APS)
We study a quantum information metric (or fidelity susceptibility) in conformal field theories with respect to a small perturbation by a primary operator. We argue that its gravity dual is approximately given by a volume of maximal time slice in an anti–de Sitter spacetime when the perturbation is exactly marginal. We confirm our claim in several examples.
Note:
  • 5 pages plus appendices, Revtex, 2 figures
  • 11.25.Hf
  • 11.25.Tq
  • 04.60.Cf
  • gravitation: duality
  • space-time: anti-de Sitter
  • field theory: conformal
  • operator: primary
  • perturbation
  • susceptibility
  • AdS/CFT correspondence