Week 04.07.2020 – 12.07.2020

Wednesday

Remarks on the complex SYK model

Journal Club Grigory Tarnopolsky (Harvard)

at:
15:00 Other
room Virtual
abstract:

In this talk I will discuss new properties of the complex SYK model in comparison with the Majorana one. I’ll mostly focus on spectrum of operators and the effective low energy action of the complex SYK model. In this case the conserved U(1) charge contributes a compact scalar field to the effective action in addition to the Schwarzian term. Part of the Black Hole Information Paradox Journal Club. Please email damian.galante@kcl.ac.uk for link to the meeting.

Thursday

Solving the Yang-Baxter equation

Journal Club Marius de Leeuw (Trinity College Dublin)

at:
15:00 Other
room Zoom, instructions in abstract
abstract:

The Yang-Baxter equation is an important equation that appears in many different areas of physics. It signals the presence of integrable structures which appear in topics ranging from condensed matter physics to holography. In this talk I will discuss a new method to find all regular solutions of the Yang-Baxter equation by using the so-called boost automorphism. The main idea behind this method is to use the Hamiltonian rather than the R-matrix as a starting point. I will demonstrate our method by classifying all solutions of the Yang-Baxter equation of eight-vertex type. I will also consider certain 9x9 and 16x16 solutions and give new integrable models in all of these cases. As a further application, I will discuss all integrable deformations of R-matrices that appear in the lower-dimensional cases of the AdS/CFT correspondence. -------------------------- Part of London Integrability Journal Club. New participants please register at integrability-london.weebly.com for the link. (Registration is only needed once).