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Research Van Swinderen Institute

Lunch seminar Edward Mazenc

When:Th 31-03-2016 12:30 - 13:30


Edward Mazenc


Stanford SITP


Entanglement entropy in 2d string theory


Holography teaches us that spacetime is many ways an emergent concept. But how do the degrees of freedom of the dual state encode a semi-classical spacetime? In a local field theory, degrees of freedom which are spatially close are also highly entangled. We therefore look for such entangled modes in the non-gravitational theory to isolate the corresponding local dynamics in the bulk. We consider the large-N quantum mechanics dual to two dimensional string theory as a toy model to test these ideas. By studying the entanglement of matrix eigenvalues, we reproduce the entanglement entropy of the bulk scalar field, with an inherent explicit UV cutoff.