PU High Energy Theory Seminar
Majorana Scars as Group Singlets
This talk will be held in-person in Jadwin Hall, PCTS Room 407 and on Zoom:
https://princeton.zoom.us/j/97248927011?pwd=SWFiNWFwZWE5SUR4OUxvV0ZacVdWQT09
Abstract: Based on the framework proposed in 2007.00845 and 2106.10300, we present a class of lattice models of Majorana fermions, that possess two sectors of many-body scar states.
These scar states, realized as group singlets of certain large rank group, generalize the eta-pairing states and zeta states in Ferm-Hubbard model.
They have lower entanglement entropy compared to generic states at the same energy, showing the (weak) ergodicity breaking.
This is also the first concrete example of many-body scars that are not equally spaced in energy, which can lead to the lack of revivals.
Reference: https://arxiv.org/abs/2212.11914