Gauge/Gravity Duality 2015

Session

Afternoon session

17 Apr 2015, 14:20

The Galileo Galilei Institute for Theoretical Physics (GGI)

48. Entanglement and differential entropy for massive flavors

Marika Taylor

17/04/2015, 14:20

In this talk we will discuss entanglement entropy for massive flavors, from both holographic and field theory perspectives. We will describe efficient computational methods for the holographic entanglement entropy of brane systems, and we will show that the holographic entanglement entropy agrees precisely with field theory expectations. We will explain how to extract finite terms in the the...

36. Behind the geon horizon

Monica Guica

17/04/2015, 15:00

We explore the Papadodimas-Raju prescription for reconstructing the region behind the horizon of one-sided black holes in AdS/CFT in the case of the RP^2 geon - a simple, analytic example of a single-sided, asymptotically AdS_3 black hole, which corresponds to a pure CFT state that thermalises at late times. We show that in this specific example, the mirror operators involved in the...

51. Position space analysis of the AdS (in)stability problem

Matthew Lippert

17/04/2015, 15:40

We investigate whether arbitrarily small perturbations in global AdS space are generically unstable and collapse into black holes on the time scale set by gravi- tational interactions. We argue that current evidence, combined with our analysis, strongly suggests that a set of nonzero measure in the space of initial conditions does not collapse on this time scale. On the other hand, existing...

52. A Simple Holographic Superconductor with Momentum Relaxation

Keun-Young Kim

17/04/2015, 16:40

15. Spin Matrix theory as a model for the AdS/CFT correspondence

Troels Harmark

17/04/2015, 17:10

We introduce a new type of quantum mechanical theory called Spin Matrix theory. It is a generalization of nearest-neighbor spin chain theories. We show that Spin Matrix theory arise from N=4 super Yang-Mills theory near certain zero-temperature critical points. We find that Spin Matrix theory contains a variety of phases that mimics that of the AdS/CFT correspondence, and hence gives a quantum...

55. Stringy hadrons

Jacob Sonnenschein

17/04/2015, 17:40

Motivated by holographic stringy hadrons, I propose a model of stringy hadrons in four flat space-time dimensions. Mesons are rotating open strings with massive ``quarks" in their endpoints. Baryons are open strings with a quark on one end and a baryonic vertex and a di-quark on the other end. Glueballs are rotating folded closed strings. A detailed fit of the model to experimental data will...