362 citations · 6.2k across the 117 of their papers we have counts for
117 papers
Same-spin Andreev reflections in the quantum Hall regime: the role of loss
Chun-Chia Chen, Jordan T. McCourt, John Chiles +7
The interfaces of superconductors and topological materials hold promise for realizing exotic states and excitations. An important example is provided by the chiral Andreev edge st…
Quantum Hall Andreev Conversion in Graphene Nanostructures
Alexey Bondarev, William H. Klein, Harold U. Baranger
We study Andreev conversion in clean nanostructures containing an interface between graphene in the quantum Hall (QH) state and a superconductor, focusing on the lowest Landau leve…
Transparent Graphene-Superconductor Interfaces: Quantum Hall and Zero Field Regimes
Alexey Bondarev, Gu Zhang, Harold U. Baranger
We study clean, edge-contacted graphene/superconductor interfaces in both the quantum Hall (QH) and zero field regimes. We find that Andreev reflection is substantially stronger th…
Conductance of a Dissipative Quantum Dot: Nonequilibrium Crossover Near a Non-Fermi-Liquid Quantum Critical Point
Gu Zhang, E. Novais, Harold U. Baranger
We find the nonlinear conductance of a dissipative resonant level in the nonequilibrium steady state near its quantum critical point. The system consists of a spin-polarized quantu…
Driven-dissipative phase transition in a Kerr oscillator: From semiclassical symmetry to quantum fluctuations
Xin H. H. Zhang, Harold U. Baranger
We study a minimal model that has a driven-dissipative quantum phase transition, namely a Kerr non-linear oscillator subject to driving and dissipation. Using mean-field theory, ex…
Stabilization of a Majorana Zero Mode through Quantum Frustration
Gu Zhang, Harold U. Baranger
We analyze a system in which a topological Majorana zero mode (tMZM) combines with a Majorana produced by quantum frustration (fMZM) to produce a novel ground state. The system tha…