CMT Forum (Internal): Luisa Eck

15 Nov 2023
Seminars and colloquia
Simpkins Lee

Luisa Eck (Oxford)

Seminar series
CMT Forum
Knowledge of physics?
Yes, knowledge of physics required
For more information contact

In my talk, I will discuss a tractable model describing Rydberg-blockade bosons on a square ladder with at most one excited atom per square. Along an integrable line of couplings, the model is closely related to the XXZ chain, and exhibits an interesting self-duality. Perturbing away from this line, we find Z2, Z3 and D4 ordered phases separated by second and first order quantum phase transitions. A non-invertible remnant of U(1) symmetry applies to our full three-parameter space of couplings, and its presence results in a larger critical region as well as two distinct Z3 ordered phases.

The talk is based on joint work with Paul Fendley: and