15 papers
Observation of Critical Current Minimum in Super-Honeycomb Josephson Junction Arrays
Melissa Mikalsen, Alexander-Georg Penner, Samuel D. Escribano +6
Superconductor-semiconductor Josephson junction arrays are a uniquely tunable platform for studying collective quantum phenomena, particularly in the regime where localized Andreev…
Momentum-resolved spectroscopy of superconductivity with the quantum twisting microscope
Yuval Waschitz, Ady Stern, Yuval Oreg
We develop a theoretical framework for probing superconductivity with momentum resolution using the quantum twisting microscope (QTM), a planar tunneling device where a graphene ti…
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…
Vortex-parity-controlled diode effect in Corbino topological Josephson junctions
Joon Young Park, Thomas Werkmeister, Jonathan Zauberman +11
Nonreciprocal supercurrents in Josephson junctions have recently emerged as a sensitive tool for investigating broken symmetries in superconducting quantum materials. Here, we repo…
Theory of reentrant superconductivity in Corbino Josephson junctions
Omri Lesser, Joon Young Park, Yuval Ronen +3
Josephson junctions made of conventional superconductors display Fraunhofer-like oscillations of the critical current as a function of the threaded magnetic flux. When the supercon…
A Unifying Framework for Fractional Chern Insulator Stabilization
Peleg Emanuel, Anna Keselman, Yuval Oreg
We present a theory of fractional Chern insulator stabilization against charge-ordered states. We argue that the phase competition is captured by an effective interaction range, wh…