4 papers
Strong zero modes from geometric chirality in quasi-one-dimensional Mott insulators
Raul A. Santos, Benjamin Béri
Strong zero modes provide a paradigm for quantum many-body systems to encode local degrees of freedom that remain coherent far from the ground state. Example systems include $\math…
Fractional topological insulator precursors in spin-orbit fermion ladders
Raul A. Santos, Benjamin Béri
We study precursor states of fractional topological insulators (FTIs) in interacting fermionic ladders with spin-orbit coupling. Within a microscopically motivated bosonization app…
Interplay between intrinsic and emergent topological protection on interacting helical modes
Raul A. Santos, D. B. Gutman, Sam T. Carr
The interplay between topology and interactions on the edge of a two dimensional topological insulator with time reversal symmetry is studied. We consider a simple non-interacting…
Gauge dependence ambiguity and chemical potential in thermal U(1) theory
M. Loewe, S. Mendizabal, R. A. Santos
In this letter we explore the dependence on the gauge fixing condition of several quantities in the U(1) Higgs model at finite temperature and chemical potential. We compute the ef…