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Department of Mathematical Sciences


Publication details

Blake, M. & Donos, A. (2017). Diffusion and chaos from near AdS2 horizons. Journal of High Energy Physics 2017(2): 13.

Author(s) from Durham


We calculate the thermal diffusivity D = κ/cρ and butterfly velocity vB in holographic models that flow to AdS2 × Rd fixed points in the infra-red. We show that both these quantities are governed by the same irrelevant deformation of AdS2 and hence establish a simple relationship between them. When this deformation corresponds to a universal dilaton mode of dimension Δ = 2 then this relationship is always given by D = vB2/(2πT).