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What does the information paradox say about the universe?
Samir D. Mathur
The black hole information paradox is resolved in string theory by a radical change in the picture of the hole: black hole microstates are horizon sized quantum gravity objects cal…
The fuzzball nature of two-charge black hole microstates
Samir D. Mathur, David Turton
It has been suggested by A. Sen that the entropy of two-charge supersymmetric bound states in string theory should be accounted for by adding the entropy of source-free horizonless…
Can the universe be described by a wavefunction?
Samir D. Mathur
Suppose we assume that in gently curved spacetime (a) causality is not violated to leading order (b) the Birkoff theorem holds to leading order and (c) CPT invariance holds. Then w…
Lifting of D1-D5-P states
Shaun Hampton, Samir D. Mathur, Ida G. Zadeh
We consider states of the D1-D5 CFT where only the left-moving sector is excited. As we deform away from the orbifold point, some of these states will remain BPS while others can `…