Publications (17)
Fractional Chern insulators with a non-Landau level continuum limit
David Bauer, Spenser Talkington, Fenner Harper +2
Recent developments in fractional quantum Hall (FQH) physics highlight the importance of studying FQH phases of particles partially occupying energy bands that are not Landau level…
Topology and Broken Symmetry in Floquet Systems
Fenner Harper, Rahul Roy, Mark S. Rudner +1
Floquet systems are governed by periodic, time-dependent, Hamiltonians. Prima facie they should absorb energy from the external drives involved in modulating their couplings and he…
Fractional Chern Insulators in Bands with Zero Berry Curvature
Steven H. Simon, Fenner Harper, N. Read
Even if a noninteracting system has zero Berry curvature everywhere in the Brillouin zone, it is possible to introduce interactions that stabilise a fractional Chern insulator. The…
Chiral Flow in One-dimensional Floquet Topological Insulators
Xu Liu, Fenner Harper, Rahul Roy
We propose a bulk topological invariant for one-dimensional Floquet systems with chiral symmetry which quantifies the particle transport on each sublattice during the evolution. Th…
Floquet topological phases with symmetry in all dimensions
Rahul Roy, Fenner Harper
Dynamical systems may host a number of remarkable symmetry-protected phases that are qualitatively different from their static analogs. In this work, we consider the phase space of…
Periodic Table for Floquet Topological Insulators
Rahul Roy, Fenner Harper
Dynamical phases with novel topological properties are known to arise in driven systems of free fermions. In this paper, we obtain a `periodic table' to describe the phases of such…