9 papers
Boundary quenches in (1+1)-dimensional conformal field theory
Michele Fossati, Colin Rylands, Eytan Grosfeld +2
We investigate a class of local quantum quenches in which the conformal boundary condition of a (1+1)-dimensional conformal field theory is abruptly changed. We derive a remarkably…
Emergence of multiple zero modes bound to vortices in extended topological Josephson junctions
Adrian Reich, Kiryl Piasotski, Eytan Grosfeld +1
We study planar Josephson junctions formed on the surface of a three-dimensional topological insulator (Fu-Kane proposal). We examine the experimentally relevant parameter regimes…
Flux-driven delocalization transition in disordered topological insulator nanowires
Shimon Arie Haver, Emuna Rimon, Eytan Grosfeld
Topological insulator nanowires provide a tunable platform for studying the interplay between disorder, quantum interference, and symmetry-protected transport. Here we investigate…
Current Flow in Topological Insulator Josephson Junctions due to Imperfections
Kiryl Piasotski, Omri Lesser, Adrian Reich +5
Recent experiments on planar superconductor-topological insulator-superconductor (S-TI-S) junctions, e.g., in Corbino geometry, have reported low-temperature nonzero Josephson curr…
Heavy-Tailed Hall Conductivity Fluctuations in Quantum Hall Transitions
Emuna Rimon, Eytan Grosfeld, Yevgeny Bar Lev
We study the full distribution of the zero-temperature Hall conductivity in a lattice model of the IQHE using the Kubo formula across disorder realizations. Near the localization-d…
Consistent Field Theory Across the Mott-Insulator to Superfluid Transition
Idan S. Wallerstein, Eytan Grosfeld
We employ a field-theoretical approach to analyze the Bose-Hubbard model on a lattice, with a focus on the low-energy properties across the Mott insulator (MI) to superfluid (SF) t…