Disorder-free Floquet Symmetry Protected Topological (SPT) Phases

Disorder-free Floquet Symmetry Protected Topological (SPT) Phases
Aditi Mitra, New York University
Picture of Aditi Mitra
Date and time: Thu, Nov 07, 2019 - 11:30am
Refreshments at 11:15am
Location: Lederle 1033
Category: Condensed Matter Seminar
Abstract:

In this talk I will give an overview of Floquet SPT phases in 1D. I will describe the topological invariants needed to understand these systems, and highlight how the entanglement scaling depends on these topological invariants. I will then show that many of the topological features encountered in free SPTs are remarkably robust to adding interactions. This robustness can be understood in the language of strong modes for free fermion SPTs, and almost strong modes for interacting SPTs.