56 citations · 310 across the 20 of their papers we have counts for
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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…
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…
Electron Interference as a Probe of Majorana Zero Modes
Nadav Drechsler, Omri Lesser, Yuval Oreg
Detecting Majorana zero modes (MZMs) in topological superconductors remains challenging, as localized non-topological states can mimic MZM signatures. Here, we propose electron int…
Josephson junction arrays as a platform for topological phases of matter
Omri Lesser, Ady Stern, Yuval Oreg
Two-dimensional arrays of superconductors separated by normal metallic regions exhibit rich phenomenology and a high degree of controllability. We establish such systems as platfor…
One-dimensional topological superconductivity based entirely on phase control
Omri Lesser, Yuval Oreg, Ady Stern
Topological superconductivity in one dimension requires time-reversal symmetry breaking, but at the same time it is hindered by external magnetic fields. We offer a general prescri…
Local and Nonlocal Transport Spectroscopy in Planar Josephson Junctions
A. Banerjee, O. Lesser, M. A. Rahman +7
We report simultaneously acquired local and nonlocal transport spectroscopy in a phase-biased planar Josephson junction based on an epitaxial InAs/Al hybrid two-dimensional heteros…
Proximity-Induced Superconductivity in Epitaxial Topological Insulator/Graphene/Gallium Heterostructures
Cequn Li, Yi-Fan Zhao, Alexander Vera +16
The introduction of superconductivity to the Dirac surface states of a topological insulator leads to a topological superconductor, which may support topological quantum computing…
Signatures of a topological phase transition in a planar Josephson junction
A. Banerjee, O. Lesser, M. A. Rahman +12
A growing body of work suggests that planar Josephson junctions fabricated using superconducting hybrid materials provide a highly controllable route toward one-dimensional topolog…
Majorana zero modes induced by superconducting phase bias
Omri Lesser, Yuval Oreg
Majorana zero modes in condensed matter systems have been the subject of much interest in recent years. Their non-Abelian exchange statistics, making them a unique state of matter,…
Phase-induced topological superconductivity in a planar heterostructure
Omri Lesser, Andrew Saydjari, Marie Wesson +2
Topological superconductivity in quasi-one-dimensional systems is a novel phase of matter with possible implications for quantum computation. Despite years of effort, a definitive…
Three-phase Majorana zero modes at tiny magnetic fields
Omri Lesser, Karsten Flensberg, Felix von Oppen +1
Proposals for realizing Majorana fermions in condensed matter systems typically rely on magnetic fields, which degrade the proximitizing superconductor and plague the Majoranas' de…
Topological superconductivity in carbon nanotubes with a small magnetic flux
Omri Lesser, Gal Shavit, Yuval Oreg
We show that a one-dimensional topological superconductor can be realized in carbon nanotubes, using a relatively small magnetic field. Our analysis relies on the intrinsic curvatu…
Universal phase diagram of topological superconductors subjected to magnetic flux
Omri Lesser, Yuval Oreg
We perform a theoretical study of the orbital effect of a magnetic field on a proximity-coupled islands array of topological superconductors. To describe the system,…