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Non-universal shear viscosity from Einstein gravity
Non-universal shear viscosity Einstein gravity
2010/12/24
A very famous result of gauge/gravity duality is the universality of the ratio of shear viscosity to entropy density in every field theory holographically dual to classical, two-derivative (Einstein)...
Stellar Structure and Tests of Modified Gravity
Stellar Structure Tests of Modified Gravity
2010/12/21
Theories that attempt to explain cosmic acceleration by modifying gravity typically introduces a long-range scalar force that needs to be screened on small scales. One common screening mechanism is th...