Members: Please place your sketch in alphabetical order by last name
(Use the Heading 3, not boldface, setting for the line with your name on it.)

Xi Dong

is a postdoc at Stanford, and is broadly interested in the connection between quantum gravity and entanglement. He is also interested in cosmology, Mathieu moonshine, and applications of holography to condensed matter physics. http://www.stanford.edu/~xidong/.

Steve Giddings

is a Professor at UCSB, and is interested in different facets of the problem of quantum gravity: fundamental structure, high-energy scattering, the black hole unitarity crisis, quantum cosmology.
He is also interested in the physics of the TeV-scale, and physics extending the Standard Model. http://web.physics.ucsb.edu/~giddings/index.html.

Ted Jacobson

Prof. at Univ. of Maryland. I'm interested in all aspects of quantum gravity. What I've focused on the most is what black hole entropy might teach us through its finiteness, renormalization, and the information puzzle. I also looked extensively into the possibility of Lorentz violating quantum gravity phenomenology. During this program I plan to further investigate black hole entropy, entanglement, and the information puzzle, and I hope to revisit the vexing role of the Wheeler-deWitt equation. Outside of quantum (and classical) gravity, I also work on condensed matter analogs of Hawking radiation and force-free plasma electrodynamics.

Currently in particular I'm thinking about two topics: (i) Recently the Einstein equation for perturbations of AdS has been derived using aspects of entanglement entropy. I'd like to understand better the regime of validity of the approximations that are used, and whether this sort of reasoning can be used to derive the full Einstein equation in general. (ii) Discussions of the firewall puzzle generally don't pay much attention to the consequences of diffeomorphism invariance. Of most concern to me is the structure of the Hilbert space, and the question of how information is encoded in a state of quantum gravity. I wrote something about this in Boundary unitarity without firewalls. I'm also wondering if there is a relation between this and the quantum error correction picture of bulk reconstruction in AdS/CFT, e.g. http://arxiv.org/abs/1411.7041 and papers that followed.

Onkar Parrikar

I'm a graduate student at the University of Illinois, Urbana Champaign (graduate advisor: Rob Leigh), and presently a graduate fellow at the KITP (till June 12). I've been working on the higher-spin/vector model duality, in particular trying to reconstruct the bulk starting with the CFT exact renormalization group. I'm presently also thinking about holographic RG & entanglement entropy.

Mukund Rangamani

is a professor of mathematical physics at Durham university. His research interests lie in string theory, quantum field theory and quantum gravity. http://www.maths.dur.ac.uk/~dma0mr/

Edgar Shaghoulian

I am a postdoc at UCSB and interested in aspects of cosmology, thermal/entanglement entropy, and black holes. Within cosmology I am curious about holographic descriptions of de Sitter (dS/CFT) and accelerated FRW, in addition to infrared issues in those spacetimes. Within the fields of thermal/entanglement entropy, I am curious about how far one can push the Cardy formula (i.e. to different theories) and the Hubeny-Rangamani-Takayanagi proposal for holographic entanglement entropy (i.e. to different backgrounds). Within the field of black holes, I am curious about microstate counting of black holes' thermal entropy.

## Table of Contents

Members:Please place your sketch in alphabetical order by last name(Use the

, notHeading 3boldface, setting for the line with your name on it.)## Xi Dong

is a postdoc at Stanford, and is broadly interested in the connection between quantum gravity and entanglement. He is also interested in cosmology, Mathieu moonshine, and applications of holography to condensed matter physics. http://www.stanford.edu/~xidong/.## Steve Giddings

is a Professor at UCSB, and is interested in different facets of the problem of quantum gravity: fundamental structure, high-energy scattering, the black hole unitarity crisis, quantum cosmology.He is also interested in the physics of the TeV-scale, and physics extending the Standard Model. http://web.physics.ucsb.edu/~giddings/index.html.

## Ted Jacobson

Prof. at Univ. of Maryland. I'm interested in all aspects of quantum gravity. What I've focused on the most is what black hole entropy might teach us through its finiteness, renormalization, and the information puzzle. I also looked extensively into the possibility of Lorentz violating quantum gravity phenomenology. During this program I plan to further investigate black hole entropy, entanglement, and the information puzzle, and I hope to revisit the vexing role of the Wheeler-deWitt equation. Outside of quantum (and classical) gravity, I also work on condensed matter analogs of Hawking radiation and force-free plasma electrodynamics.Currently in particular I'm thinking about two topics: (i) Recently the Einstein equation for perturbations of AdS has been derived using aspects of entanglement entropy. I'd like to understand better the regime of validity of the approximations that are used, and whether this sort of reasoning can be used to derive the full Einstein equation in general. (ii) Discussions of the firewall puzzle generally don't pay much attention to the consequences of diffeomorphism invariance. Of most concern to me is the structure of the Hilbert space, and the question of how information is encoded in a state of quantum gravity. I wrote something about this in Boundary unitarity without firewalls. I'm also wondering if there is a relation between this and the quantum error correction picture of bulk reconstruction in AdS/CFT, e.g. http://arxiv.org/abs/1411.7041 and papers that followed.

## Onkar Parrikar

I'm a graduate student at the University of Illinois, Urbana Champaign (graduate advisor: Rob Leigh), and presently a graduate fellow at the KITP (till June 12). I've been working on the higher-spin/vector model duality, in particular trying to reconstruct the bulk starting with the CFT exact renormalization group. I'm presently also thinking about holographic RG & entanglement entropy.## Mukund Rangamani

is a professor of mathematical physics at Durham university. His research interests lie in string theory, quantum field theory and quantum gravity.http://www.maths.dur.ac.uk/~dma0mr/

## Edgar Shaghoulian

I am a postdoc at UCSB and interested in aspects of cosmology, thermal/entanglement entropy, and black holes. Within cosmology I am curious about holographic descriptions of de Sitter (dS/CFT) and accelerated FRW, in addition to infrared issues in those spacetimes. Within the fields of thermal/entanglement entropy, I am curious about how far one can push the Cardy formula (i.e. to different theories) and the Hubeny-Rangamani-Takayanagi proposal for holographic entanglement entropy (i.e. to different backgrounds). Within the field of black holes, I am curious about microstate counting of black holes' thermal entropy.