THE TWO-LOOP AMPLITUHEDRON
Dian, G
Mazzucchelli, E
Tellander, F
Matematiche
volume 53
issue 1
255-277
(01 Jan 2025)
Edge modes, extended TQFT, and measurement based quantum computation
Wong, G
Journal of High Energy Physics
volume 2025
issue 6
(20 Jun 2025)
Cream Tea Special (27 June - 31 July) - treat yourself to a traditional cream tea for only £3.90: freshly baked scone + Tiptree strawberry jam + clotted cream + a drink
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Renewal equations for mosquito-borne diseases
Mills, C
Alrefae, T
Hart, W
Kraemer, M
Parag, K
Thompson, R
Donnelly, C
Lambert, B
Methods in Ecology and Evolution
Nonlinear Cauchy elasticity
Yavari, A
Goriely, A
Archive for Rational Mechanics and Analysis
volume 249
issue 5
(01 Sep 2025)
The Darboux classification of curl forces
Yavari, A
Goriely, A
Journal of Physics A: Mathematical and Theoretical
volume 58
issue 27
(03 Jul 2025)
The latent variable proximal point algorithm for variational problems with inequality constraints
Dokken, J
Farrell, P
Keith, B
Papadopoulos, I
Surowiec, T
Computer Methods in Applied Mechanics and Engineering
volume 445
(12 Jul 2025)
Mon, 23 Jun 2025
13:00
13:00
L1
How to Count States in Gravity
Tom Yildirim
(University of Oxford)
Abstract
In this talk we will construct a basis of quantum gravity states by cutting the Euclidean path integral. These states are made by inserting heavy dust shell operators on the asymptotic boundary. We will use this basis to resolve two puzzles :
(1) The two boundary gravity Hilbert space seemingly does not factorise, which is in tension with holography.
(2) Gibbons and Hawking proposed the gravity thermal partition function is computed by the euclidean path integral with a periodic time boundary condition. Why is does this perform a trace over gravity states?
To resolve these puzzles we will introduce some tricks that simply the evaluation of the gravity path integral in the saddle point approximation.