1:30 pm VIA ZOOM

Dynamical hard rods and TTbar deformation, Yunfend Jiang, CERN

In this talk, I will show that TTbar and a family of more general solvable bilinear deformations have the effect of deforming point particles into hard rods with finite size. This can be seen most easily for non-relativistic systems where the number of excitations is conserved. I will discuss this picture from two different perspectives. In the first part, I will discuss TTbar deformation of a concrete model, which is the 1d Bose gas. In the second part, I will provide a 2d gravity interpretation for the TTbar deformation of generic non-relativistic QFTs in the framework of Newton-Cartan geometry. Finally, I will discuss the physical implications of the hard rod picture.

## Event Type

**Feb**

**8**