PIRSA:26050014 Scientific Series Quantum Gravity

DOI10.48660/26050014

Series: Quantum Gravity

Kraus, P. (2026). The gravitational S-matrix from the path integral: asymptotic symmetries and soft theorems. Perimeter Institute. https://pirsa.org/26050014

Kraus, Per. The gravitational S-matrix from the path integral: asymptotic symmetries and soft theorems. Perimeter Institute, May. 05, 2026, https://pirsa.org/26050014 

@misc{ pirsa_PIRSA:26050014,
  doi = {10.48660/26050014},
  url = {https://pirsa.org/26050014},
  author = {Kraus, Per},
  keywords = {Quantum Gravity},
  language = {en},
  title = {The gravitational S-matrix from the path integral: asymptotic symmetries and soft theorems},
  publisher = {Perimeter Institute},
  year = {2026},
  month = {may},
  note = {PIRSA:26050014 see, \url{https://pirsa.org}}
}

Abstract

The classical action, or more generally the path integral, is a convenient framework for extracting the physical consequences of symmetries. In recent years, new symmetries of gravity in asymptotically flat spacetime have been uncovered based on relations to soft theorems governing the S-matrix. I will discuss a program to understand these symmetries using a formulation in which the S-matrix is identified with the action subject to asymptotic boundary conditions. This formulation of the S-matrix is analogous to the GKP/W formulation of the AdS/CFT duality and shares many of its advantages, albeit with new subtleties due to working in asymptotically flat spacetime.

Resources

1/25
1/25
2/25
2/25
3/25
3/25
4/25
4/25
5/25
5/25
6/25
6/25
7/25
7/25
8/25
8/25
9/25
9/25
10/25
10/25
11/25
11/25
12/25
12/25
13/25
13/25
14/25
14/25
15/25
15/25
16/25
16/25
17/25
17/25
18/25
18/25
19/25
19/25
20/25
20/25
21/25
21/25
22/25
22/25
23/25
23/25
24/25
24/25
25/25
25/25

Next talk

Related Talks