New Perspectives in Conformal Field Theorie and Gravity

Session

Plenary Session Wednesday

27 Sept 2023, 09:30

Main Auditorium (DESY Hamburg)

Conveners

Plenary Session Wednesday

• Jörg Teschner & Olaf Lechtenfeld

329. Subsystem Symmetries

A. Karch (U. of Texas at Austin)

27/09/2023, 09:30

Systems with subsystem symmetries have recently emerged as an important frontier in theoretical physics. They arise in novel lattice systems, describing "fractonic" phases of matter -- a generalization of topological phases. From the formal point of view, they challenge dearly held notions about what a quantum field theory is, most notably the Wilsonian paradigm. After reviewing these recent...

322. Non-relativistic gravity and non-Lorentzian geometry

N. Obers (Nordita)

27/09/2023, 10:10

I will review Newton-Cartan gravity with an emphasis on recent developments, including the covariant, off-shell large speed of light expansion of general relativity. Depending on the matter content, this expansion either leads to Newton-Cartan geometry with absolute time or to Newton-Cartan geometry with non-relativistic gravitational time dilation effects. The latter shows that...

323. Bootstrability in multi correlators

N. Gromov (KCL London)

27/09/2023, 11:20

324. Diamonds of integrable deformations

B. Hoare (Durham)

27/09/2023, 12:00

There are two well-known origins of 2-dimensional integrable QFTs from 4 dimensions -- localisation of 4d Chern-Simons and symmetry reduction of 4d anti self-dual Yang-Mills. It is a conjecture of Costello that these can be unified in a diamond of theories, starting from holomorphic Chern-Simons theory in 6 dimensions.

It has been shown how this works for the simplest class of theories,...