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SUMMARY:Black Holes and Thermoelectric Transport - Jerome Gauntlett (Imper
 ial)
DTSTART:20170301T141500Z
DTEND:20170301T151500Z
UID:TALK69418@talks.cam.ac.uk
CONTACT:Shahar Hadar
DESCRIPTION:In seeking possible applications of holography to real materia
 ls the\nthermoelectric conductivity is an important observable to study. L
 ike the entropy\nwe explain how the DC conductivity can be obtained from t
 he behaviour of\nblack hole spacetimes purely at the horizon. More precise
 ly\, we show that the DC\nconductivity can be obtained by solving a genera
 lised set of Navier-Stokes\nequations for a fluid living on the black hole
  horizon. Unlike other connections\nbetween fluids and black holes\, this 
 is an exact result and and can be viewed as a precise manifestation \nof t
 he old membrane paradigm for black holes in holography.\nWe also show that
  CFTs (not just holographic) with spatially periodic\ntemperature gradient
 s and strains can exhibit the novel phenomenon of thermal\nbackflow\, in w
 hich heat currents locally flow in the opposite direction to that\nof an a
 pplied DC source.
LOCATION:MR2\, Centre for Mathematical Sciences
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