Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-05-31
Phys.Rev.D78:066009,2008
Physics
High Energy Physics
High Energy Physics - Theory
10 pages; v2: reference added, to appear in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.78.066009
We discuss a class of critical models in d>1+1 dimensions whose electrical
conductivity and charge susceptibility are fixed by the central charge in a
universal manner. We comment on possible bounds on conductivity, as suggested
by holographic duality.
Kovtun Pavel
Ritz Adam
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