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Matthew Headrick (Brandeis University)
Thursday 19 February 2026, 13:00-14:00
Mysterious properties of holographic entanglement
- 👤 Speaker: Matthew Headrick (Brandeis University)
- 📅 Date & Time: Thursday 19 February 2026, 13:00 - 14:00
- 📍 Venue: Potter room
Abstract
The Ryu-Takayanagi holographic entanglement entropy formula is a cornerstone of our modern understanding of holography and quantum gravity. It predicts that static holographic states have many peculiar properties, expressed as inequalities obeyed by entanglement entropies. These inequalities remain deeply mysterious, both on conceptual and technical levels. Can we decode what they’re telling us about the entanglement structure of semiclassical states in quantum gravity? For that, we need to know if the inequalities are obeyed in time-dependent states, in other words by the covariant Hubeny-Rangamani-Takayanagi formula. This is itself a fascinating problem in general relativity. We will review the state of the art on these questions, including the attempts to resolve them and the evidence that has been gathered so far.
Series This talk is part of the Quantum Fields and Strings Seminars series.
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