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Publications Influence

Quantum focusing conjecture

- R. Bousso, Zachary Kenneth Fisher, Stefan Leichenauer, and Aron C. Wall
- Physics
- 8 June 2015

We propose a universal inequality that unies the Bousso bound with the classical focussing theorem. Given a surface that need not lie on a horizon, we dene a nite generalized entropy Sgen as the area… Expand

142 25- PDF

Proof of the Quantum Null Energy Condition

- R. Bousso, Zachary Kenneth Fisher, Jason Koeller, Stefan Leichenauer, Aron C. Wall
- Physics
- 8 September 2015

We prove the quantum null energy condition (QNEC), a lower bound on the stress tensor in terms of the second variation in a null direction of the entropy of a region. The QNEC arose previously as a… Expand

118 9- PDF

ETC: Encoding Long and Structured Inputs in Transformers

- Joshua Ainslie, Santiago Ontañón, +7 authors L. Yang
- Computer Science, Mathematics
- EMNLP
- 17 April 2020

TLDR

18 5- PDF

Entropy on a null surface for interacting quantum field theories and the Bousso bound

- R. Bousso, H. Casini, Zachary Kenneth Fisher, J. Maldacena
- Physics
- 17 June 2014

We study the vacuum-subtracted von Neumann entropy of a segment on a null plane. We argue that for interacting quantum field theories in more than two dimensions, this entropy has a simple expression… Expand

85 5- PDF

A Semiclassical, Entropic Proof of a Weak Gravity Conjecture

- Zachary Kenneth Fisher, Christopher J. Mogni
- Physics
- 26 June 2017

We present a semiclassical proof of the weak gravity conjecture in $D = 4$ spacetime dimensions for scalar matter gauged under a $U(1)^N$ gauge group. We compute the non-perturbative macroscopic… Expand

16 2- PDF

Post-procedure pain following direct MR arthrography

- J. Giaconi, T. Link, R. Hong, R. Singh, Zachary Kenneth Fisher, Lynne Steinbach
- Medicine
- 2010

Poster: "ECR 2010 / C-2310 / Post-procedure pain following direct MR arthrography" by: "J. Giaconi, T. M. Link, R. Hong, R. Singh, Z. Fisher, L. S. Steinbach; San Francisco, CA/US"

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Proof of a Quantum Bousso Bound

- R. Bousso, H. Casini, Zachary Kenneth Fisher, J. Maldacena
- Physics
- 22 April 2014

We prove the generalized covariant entropy bound, Δ S ≤ ( A - A ′ ) / 4 G ℏ , for light-sheets with initial area A and final area A ′ . The entropy Δ S is defined as a difference of von Neumann… Expand

86- PDF

Information flow in black hole evaporation

- H. Chen, Zachary Kenneth Fisher, Juan Hernández, R. Myers, Shan-Ming Ruan
- Physics
- 8 November 2019

Recently, new holographic models of black hole evaporation have given fresh insights into the information paradox [ 1 – 3 ]. In these models, the black hole evaporates into an auxiliary bath space… Expand

43- PDF

Evaporating black holes coupled to a thermal bath

- H. Chen, Zachary Kenneth Fisher, J. Hernández, R. Myers, Shan-Ming Ruan
- Physics
- 22 July 2020

We study the doubly holographic model of [1] in the situation where a black hole in two-dimensional JT gravity theory is coupled to an auxiliary bath system at arbitrary finite temperature. Depending… Expand

23- PDF

Entropy Bounds and Entanglement

- Zachary Kenneth Fisher
- Physics
- 30 July 2017

Author(s): Fisher, Zachary Kenneth | Advisor(s): Bousso, Raphael | Abstract: The generalized covariant entropy bound, or Bousso bound, is a holographic bound on the entropy of a region of space in a… Expand

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