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Add to Calendar 11/29/2018 12:30 pm 11/29/2018 America/Chicago Mathematical and Theoretical Physics Seminar: Towards a Proof of Quantum Focusing DESCRIPTION:

In well-behaved classical systems, the lightlike components of the stress-energy are positive. For a gravitating system, this implies gravitational lensing, which in turn leads to many famous results about general relativity. Ordinary states in QFT, however, can violate this positivity property. A quantum gravity generalization of gravitational lensing, called “quantum focusing” has recently been conjectured. Its non-gravitational limit, the quantum null energy condition, was recently proven. In this talk, I will use gauge/gravity duality to prove an integrated version of the fully gravitational quantum focusing conjecture, to first subleading order in quantum fluctuations of the spacetime.

 

\n\nSPEAKER:

Netta Engelhardt, Princeton University

464 Loomis

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Mathematical and Theoretical Physics Seminar: Towards a Proof of Quantum Focusing

Speaker Netta Engelhardt, Princeton University
Date: 11/29/2018
Time: 12:30 p.m.
Location:

464 Loomis

Sponsor:

Physics

Event Type: Seminar/Symposium
 

In well-behaved classical systems, the lightlike components of the stress-energy are positive. For a gravitating system, this implies gravitational lensing, which in turn leads to many famous results about general relativity. Ordinary states in QFT, however, can violate this positivity property. A quantum gravity generalization of gravitational lensing, called “quantum focusing” has recently been conjectured. Its non-gravitational limit, the quantum null energy condition, was recently proven. In this talk, I will use gauge/gravity duality to prove an integrated version of the fully gravitational quantum focusing conjecture, to first subleading order in quantum fluctuations of the spacetime.

 

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