Publications (166)
Modulation induced transport signatures in correlated electron waveguides
Gal Shavit, Yuval Oreg
Recent transport experiments in spatially modulated quasi-1D structures created on top of LaAlO/SrTiO interfaces have revealed some interesting features, including phenomen…
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…
Observation of half-integer thermal Hall conductance
Mitali Banerjee, Moty Heiblum, Vladimir Umansky +3
Topological states of matter are characterized by topological invariant, which are physical quantities whose values are quantized and do not depend on details of the measured syste…
Helical liquids and Majorana bound states in quantum wires
Yuval Oreg, Gil Refael, Felix von Oppen
We show that the combination of spin-orbit coupling with a Zeeman field or strong interactions may lead to the formation of a helical liquid in single-channel quantum wires. In a h…
Enhancement of the tunneling density of states in Tomonaga--Luttinger Liquids
Yuval Oreg, Alexander M. Finkel'stein
We have calculated the tunneling density of states (DOS) at the location of a backward scattering defect for quantum wires and for edge state electrons in quantum Hall systems. A s…
Time-Reversal Invariant Topological Superconductivity Induced by Repulsive Interactions in Quantum Wires
Arbel Haim, Anna Keselman, Erez Berg +1
We consider a model for a one-dimensional quantum wire with Rashba spin-orbit coupling and repulsive interactions, proximity coupled to a conventional s-wave superconductor. Using…
Imprint of topological degeneracy in quasi-one-dimensional fractional quantum Hall states
Eran Sagi, Yuval Oreg, Ady Stern +1
We consider an annular superconductor-insulator-superconductor Josephson-junction, with the insulator being a double layer of electron and holes at Abelian fractional quantum Hall…
Anomalous currents and spontaneous vortices in spin-orbit coupled superconductors
Benjamin A. Levitan, Yuval Oreg, Erez Berg
We propose a mechanism which can generate supercurrents in spin-orbit coupled superconductors with charged magnetic inclusions. The basic idea is that through spin-orbit interactio…
Cascade of Phase Transitions and Dirac Revivals in Magic Angle Graphene
Uri Zondiner, Asaf Rozen, Daniel Rodan-Legrain +10
Twisted bilayer graphene near the magic angle exhibits remarkably rich electron correlation physics, displaying insulating, magnetic, and superconducting phases. Here, using measur…
Visualizing isospin magnetic texture and intervalley exchange interaction in rhombohedral tetralayer graphene
Nadav Auerbach, Surajit Dutta, Matan Uzan +13
The tunable band structure and nontrivial topology of multilayer rhombohedral graphene lead to a variety of correlated electronic states with isospin orders-meaning ordered states…
Spectroscopic Visualization of Hard Quasi-1D Superconductivity Induced in Nanowires Deposited on a Quasi-2D Indium film
Ambikesh Gupta, Pranab Kumar Nag, Shai Kiriati +6
Following significant progress in the visualization and characterization of hybrid superconducting-semiconducting systems, greatly propelled by reports of Majorana zero modes in na…
Detecting Majoranas in 1D wires by charge sensing
Gilad Ben-Shach, Arbel Haim, Ian Appelbaum +3
The electron number-parity of the ground state of a semiconductor narowire proximity-coupled to a bulk superconductor can alternate between the quantised values if paramete…
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…
Twist-Programmable Superconductivity in Spin-Orbit Coupled Bilayer Graphene
Yiran Zhang, Gal Shavit, Huiyang Ma +8
The relative twist angle between layers of near-lattice-matched van der Waals materials is critical for the emergent correlated phenomena associated with moire flat bands. However,…
Renormalization-group-inspired neural networks for computing topological invariants
Gilad Margalit, Omri Lesser, T. Pereg-Barnea +1
We show that artificial neural networks (ANNs) can, to high accuracy, determine the topological invariant of a disordered system given its two-dimensional real-space Hamiltonian. F…
Fractional chiral superconductors
Eran Sagi, Arbel Haim, Erez Berg +2
Two-dimensional topological superconductors host gapless Majorana edge modes, as well as Majorana bound states at the core of vortices. Here we construct a model…
Theory of Non-Coherent Spin Pumps
Eran Sela, Yuval Oreg
We study electron pumps in the absence of interference effects paying attention to the spin degree of freedom. Electron-electron exchange interactions combined with a variation of…
Superconductor-to-normal transition in finite nanowires
Gil Refael, Eugene Demler, Yuval Oreg
In this paper we discuss the interplay of quantum fluctuations and dissipation in uniform superconducting nanowires. We consider a phenomenological model with superconducting and n…
Scaling tunnelling noise in the fractional quantum Hall effect tells about renormalization and breakdown of chiral Luttinger liquid
Noam Schiller, Tomer Alkalay, Changki Hong +4
The fractional quantum Hall (FQH) effect provides a paradigmatic example of a topological phase of matter. FQH edges are theoretically described via models belonging to the class o…
A mean-field model for the electron glass dynamics
Ariel Amir, Yuval Oreg, Yoseph Imry
We study a microscopic mean-field model for the dynamics of the electron glass, near a local equilibrium state. Phonon-induced tunneling processes are responsible for generating tr…
Spin, spin-orbit, and electron-electron interactions in mesoscopic systems
Yuval Oreg, P. W. Brouwer, X. Waintal +1
We review recent theoretical developments about the role of spins, electron-electron interactions, and spin-orbit coupling in metal nanoparticles and semiconductor quantum dots. Fo…
Scalable Designs for Quasiparticle-Poisoning-Protected Topological Quantum Computation with Majorana Zero Modes
Torsten Karzig, Christina Knapp, Roman M. Lutchyn +9
We present designs for scalable quantum computers composed of qubits encoded in aggregates of four or more Majorana zero modes, realized at the ends of topological superconducting…
Heat Conductance of the Quantum Hall Bulk
Ron Aharon Melcer, Avigail Gil, Arup-Kumar Paul +6
The Quantum Hall Effect (QHE) is a prototypical realization of a topological state of matter. It emerges from a subtle interplay between topology, interactions, and disorder. The d…
Detecting the universal fractional entropy of Majorana zero modes
Eran Sela, Yuval Oreg, Stephan Plugge +3
A pair of Majorana zero modes (MZMs) constitutes a nonlocal qubit whose entropy is . Upon strongly coupling one of the constituent MZMs to a reservoir with a continuous den…
Generalized parafermions and non-local Josephson effect in multi-layer systems
Hiromi Ebisu, Eran Sagi, Yukio Tanaka +1
We theoretically investigate the effects of backscattering and superconducting proximity terms between the edges of two multi-layer fractional quantum Hall (FQH) systems. While the…
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…
Robust Majorana magic gates via measurements
Torsten Karzig, Yuval Oreg, Gil Refael +1
phase gates (magic gates or T-gates) are crucial to augment topological systems based on Majorana zero modes to full quantum universality. We present a scheme based on a com…
How to directly measure a Kondo cloud's length
Jinhong Park, S. -S. B. Lee, Yuval Oreg +1
We propose a method to directly measure, by electrical means, the Kondo screening cloud formed by an Anderson impurity coupled to semi-infinite quantum wires, on which an electrost…
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…
Temperature enhancement of thermal Hall conductance quantization
I. C. Fulga, Yuval Oreg, Alexander D. Mirlin +2
The quest for non-Abelian quasiparticles has inspired decades of experimental and theoretical efforts, where the scarcity of direct probes poses a key challenge. Among their cleare…
Realizing Topological Superconductivity with Superlattices
Yoav Levine, Arbel Haim, Yuval Oreg
The realization of topological superconductors (SCs) in one or two dimensions is a highly pursued goal. Prominent proposed realization schemes include semiconductor/superconductor…
Signatures of topological phase transitions in mesoscopic superconducting rings
Falko Pientka, Alessandro Romito, Mathias Duckheim +2
We investigate Josephson currents in mesoscopic rings with a weak link which are in or near a topological superconducting phase. As a paradigmatic example, we consider the Kitaev m…
Reduction of electron repulsion and enhancement of in small diffusive superconducting grains
Sabyasachi Tarat, Yuval Oreg, Yoseph Imry
The superconducting properties of small metallic grains has been a topic of active research for half a century now. Early experiments demonstrated a remarkable rise in the critical…
Electron Pair Resonance in the Coulomb Blockade
Eran Sela, H. S. Sim, Yuval Oreg +2
We study many-body corrections to the cotunneling current via a localized state with energy at large bias voltages . We show that the transfer of {\em electron pairs}, en…
Inter-Edge interaction in the Quantum Hall Effect
Yuval Oreg, Alexander M. Finkel'stein
We consider effects of the interaction between electrons drifting along the opposite sides of a narrow sample under the conditions of the quantum Hall effect. A spatial variation o…
Thermal conductance of one dimensional disordered harmonic chains
Biswarup Ash, Ariel Amir, Yohai Bar-Sinai +2
We study heat conduction mediated by longitudinal phonons in one dimensional disordered harmonic chains. Using scaling properties of the phonon density of states and localization i…
Reentrance and Magnetic-Field-Induced Superconductivity with Kondo Impurities: Bulk and Proximity Systems
Yuval B. Simons, Ora Entin-Wohlman, Yuval Oreg +1
Reentrant behavior is known to exist and magnetic-field-induced superconductivity has been predicted in superconductors with Kondo impurities. We present a simple framework for und…
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…
Localization, anomalous diffusion and slow relaxations: a random distance matrix approach
Ariel Amir, Yuval Oreg, Yoseph Imry
We study the spectral properties of a class of random matrices where the matrix elements depend exponentially on the distance between uniformly and randomly distributed points. Thi…
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…
Multiple Particle Scattering in Quantum Point Contacts
Dganit Meidan, Yuval Oreg
Recent experiments performed on weakly pinched quantum point contacts, have shown a resistance that tend to decrease at low source drain voltage. We show that enhanced Coulomb inte…
Internal entropy from heat current
Noam Schiller, Hiromi Ebisu, Gil Refael +1
We demonstrate that the effective internal entropy of quasiparticles within the non-Abelian fractional quantum Hall effect manifests in the heat current through a tunneling barrier…
Semiconductor-ferromagnet-superconductor planar heterostructures for 1D topological superconductivity
Samuel D. Escribano, Andrea Maiani, Martin Leijnse +5
Hybrid structures of semiconducting (SM) nanowires, epitaxially grown superconductors (SC), and ferromagnetic-insulator (FI) layers have been explored experimentally and theoretica…
Decays in Quantum Hierarchical Models
Ariel Amir, Yuval Oreg, Yoseph Imry
We study the dynamics of a simple model for quantum decay, where a single state is coupled to a set of discrete states, the pseudo continuum, each coupled to a real continuum of st…
Chiral Majorana Modes via Proximity to a Twisted Cuprate Bilayer
Gilad Margalit, Binghai Yan, Marcel Franz +1
We propose a novel heterostructure to achieve chiral topological superconductivity in 2D. A substrate with a large Rashba spin-orbit coupling energy is brought in proximity to a tw…
Drag and Hall drag in a bi-layer system with pinholes
Yuval Oreg, Bertrand I. Halperin
The transresistance and the Hall transresistance of dirty two-dimensional bi-layer systems in the presence of tunneling bridges (pinholes) are studied theoretically. We find, at we…
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…
Thermal conductivity in 1d: disorder-induced transition from anomalous to normal scaling
Ariel Amir, Yuval Oreg, Yoseph Imry
It is well known that the contribution of harmonic phonons to the thermal conductivity of 1D systems diverges with the harmonic chain length (explicitly, increases with as…
Experimental Proposal to Detect Topological Ground State Degeneracy
Maissam Barkeshli, Yuval Oreg, Xiao-Liang Qi
One of the most profound features of topologically ordered states of matter, such as the fractional quantum Hall (FQH) states, is that they possess topology-dependent ground state…
Signatures of topological Josephson junctions
Yang Peng, Falko Pientka, Erez Berg +2
Quasiparticle poisoning and diabatic transitions may significantly narrow the window for the experimental observation of the -periodic Josephson effect predicted for topo…
Mesoscopic fluctuations of the ground state spin of a small metal particle
P. W. Brouwer, Yuval Oreg, B. I. Halperin
We study the statistical distribution of the ground state spin for an ensemble of small metallic grains, using a random-matrix toy model. Using the Hartree Fock approximation, we f…
Transmission Phase Shift of a Quantum Dot with Kondo Correlations
Ulrich Gerland, Jan von Delft, Theo Costi +1
We study the effects of Kondo correlations on the transmission phase shift of a quantum dot in an Aharonov-Bohm ring. We predict in detail how the development of a Kondo resonance…
Supersymmetry in the Insulating Phase of a Chain of Majorana Cooper Pair Boxes
Hiromi Ebisu, Eran Sagi, Yuval Oreg
The charging energy of a small superconducting island containing Majorana zero modes---a Majorana Cooper-pair box---induces interactions between the Majorana zero modes. Consid…
Electron Glass Dynamics
Ariel Amir, Yuval Oreg, Yoseph Imry
Examples of glasses are abundant, yet it remains one of the phases of matter whose understanding is very elusive. In recent years, remarkable experiments have been performed on the…
1/f noise and slow relaxations in glasses
Ariel Amir, Yuval Oreg, Yoseph Imry
Recently we have shown that slow relaxations in the electron glass system can be understood in terms of the spectrum of a matrix describing the relaxation of the system close to a…
The Effect of Quantum Phase Slip Interactions on the Transport of Thin Superconducting Wires
Dganit Meidan, Yuval Oreg, Gil Refael
We study theoretically the effect of interactions between quantum phase slips in a short superconducting wire beyond the dilute phase slip approximation. In contrast to the smooth…
Unconventional Josephson signatures of Majorana bound states
Liang Jiang, David Pekker, Jason Alicea +3
A junction between two topological superconductors containing a pair of Majorana fermions exhibits a `fractional' Josephson effect, periodic in the superconductors' phase dif…
The Quantum Twisting Microscope
Alon Inbar, John Birkbeck, Jiewen Xiao +7
The invention of scanning probe microscopy has revolutionized the way electronic phenomena are visualized. While present-day probes can access a variety of electronic properties at…
Quantum Geometry and Stabilization of Fractional Chern Insulators Far from the Ideal Limit
Gal Shavit, Yuval Oreg
In the presence of strong electronic interactions, a partially filled Chern band may stabilize a fractional Chern insulator (FCI) state, the zero-field analog of the fractional qua…
Entropic evidence for a Pomeranchuk effect in magic angle graphene
Asaf Rozen, Jeong Min Park, Uri Zondiner +9
In the 1950's, Pomeranchuk predicted that, counterintuitively, liquid 3He may solidify upon heating, due to a high excess spin entropy in the solid phase. Here, using both local an…
Enhanced shot noise in asymmetric interacting two level systems
Assaf Carmi, Yuval Oreg
We study a model of two interacting levels that are attached to two electronic leads, where one of the levels is attached very weakly to the leads. We use rate equations method to…
Imaging Coulomb interactions and migrating Dirac cones in twisted graphene by local quantum oscillations
Matan Bocarsly, Indranil Roy, Vishal Bhardwaj +12
Flat band moiré graphene systems have emerged as a quintessential platform to investigate correlated phases of matter. A plethora of interaction-driven ground states have been pro…
Non-Abelian statistics and topological quantum information processing in 1D wire networks
Jason Alicea, Yuval Oreg, Gil Refael +2
Topological quantum computation provides an elegant way around decoherence, as one encodes quantum information in a non-local fashion that the environment finds difficult to corrup…
Electron pairing induced by repulsive interactions in tunable one-dimensional platforms
Gal Shavit, Yuval Oreg
We present a scheme comprised of a one-dimensional system with repulsive interactions, in which the formation of bound pairs can take place in an easily tunable fashion.By capaciti…
Topologically protected braiding in a single wire using Floquet Majorana modes
Bela Bauer, T. Pereg-Barnea, Torsten Karzig +4
Majorana zero modes are a promising platform for topologically protected quantum information processing. Their non-Abelian nature, which is key for performing quantum gates, is mos…
Phase-controlled minimal Kitaev chain in multiterminal Josephson junctions
Samuel D. Escribano, Anders Enevold Dahl, Karsten Flensberg +1
We propose a nanodevice based on multi-terminal Josephson junctions for the creation and detection of poor man's Majorana (PMM) modes. The device consists of a double three-termina…
Probing single-electron scattering through a non-Fermi liquid charge-Kondo device
Eran Sela, David Goldhaber-Gordon, A. Anthore +2
Among the exotic and yet unobserved features of multi-channel Kondo impurity models is their sub-unitary single electron scattering. In the two-channel Kondo model, for example, an…
Huge (but finite) time scales in slow relaxations: beyond simple aging
Ariel Amir, Stefano Borini, Yuval Oreg +1
Experiments performed in the last years demonstrated slow relaxations and aging in the conductance of a large variety of materials. Here, we present experimental and theoretical re…
Transmission phase shifts of Kondo impurities
Assaf Carmi, Yuval Oreg, Micha Berkooz +1
We study the coherent properties of transmission through Kondo impurities, by considering an open Aharonov-Bohm ring with an embedded quantum dot. We develop a novel many-body scat…
Electron Attraction Mediated by Coulomb Repulsion
Assaf Hamo, Avishai Benyamini, Ilanit Shapir +6
One of the defining properties of electrons is their mutual Coulombic repulsion. In solids, however, this basic property may change. A famous example is that of superconductors, wh…
Extracting the scaling dimension of quantum Hall quasiparticles from current correlations
Noam Schiller, Yuval Oreg, Kyrylo Snizhko
Fractional quantum Hall quasiparticles are generally characterized by two quantum numbers: electric charge and scaling dimension . For the simplest states (such as the Laug…
Supplementary Information for cond-mat/0610721: Potok et al. "Observation of the two-channel Kondo effect"
R. M. Potok, I. G. Rau, Hadas Shtrikman +2
This document provides detailed descriptions of data acquisition and data analysis in support of the accompanying Article, cond-mat/0610721: Observation of the two-channel Kondo ef…
No-go theorem for a time-reversal invariant topological phase in noninteracting systems coupled to conventional superconductors
Arbel Haim, Erez Berg, Karsten Flensberg +1
We prove that a system of non-interacting electrons proximity coupled to a conventional s-wave superconductor cannot realize a time reversal invariant topological phase. This is do…
Gapfull and gapless D Topological Superconductivity in Spin-Orbit Coupled Bilayer Graphene
Daniel Skliannyi, Yuval Oreg, Ady Stern
We propose a way to generate a one-dimensional topological superconductor from a monolayer of a transition metal dichalcogenide coupled to a Bernal-stacked bilayer of graphene unde…
Effects of the electrostatic environment on superlattice Majorana nanowires
Samuel D. Escribano, Alfredo Levy Yeyati, Yuval Oreg +1
Finding ways of creating, measuring and manipulating Majorana bound states (MBSs) in superconducting-semiconducting nanowires is a highly pursued goal in condensed matter physics.…
Tunable proximity effects and topological superconductivity in ferromagnetic hybrid nanowires
Samuel D. Escribano, Elsa Prada, Yuval Oreg +1
Hybrid semiconducting nanowire devices combining epitaxial superconductor and ferromagnetic insulator layers have been recently explored experimentally as an alternative platform f…
A Single Impurity in Tomonaga-Luttinger Liquids
Yuval Oreg, Alexander M. Finkel'stein
The problem of a single impurity in one dimensional Tomonaga-Luttinger liquids with a repulsive electron-electron interaction is discussed. We find that the renormalization group f…
Measuring fermion parity correlations and relaxation rates in 1D topological superconducting wires
F. J. Burnell, Alexander Shnirman, Yuval Oreg
Zero energy Majorana fermion states (Majoranas) can arise at the ends of a semiconducting wire in proximity with a superconductor. A first generation of experiments has detected a…
The Signs of Quantum Dot-Lead Matrix Elements: The Effect on Transport vs. Spectral Properties
Alessandro Silva, Yuval Oreg, Yuval Gefen
A small quantum dot coupled to two external leads is considered. Different signs of the dot-leads coupling matrix elements give rise to qualitatively different behavior of physical…
Partitioning of Diluted Anyons Reveals their Braiding Statistics
June-Young M. Lee, Changki Hong, Tomer Alkalay +5
Correlations of partitioned particles carry essential information about their quantumness. Partitioning full beams of charged particles leads to current fluctuations, with their au…
Chiral topologically ordered insulating phases in arrays of interacting integer quantum Hall islands
Hiromi Ebisu, Rohit R. Kalloor, Alexei M. Tsvelik +1
We study networks of Coulomb-blockaded integer quantum Hall islands with even fillings ( being an integer), including cases with layers each of fillings. All…
Observed Quantization of Anyonic Heat Flow
Mitali Banerjee, Moty Heiblum, Amir Rosenblatt +4
The quantum of heat conductance of ballistic one-dimensional (1D) channels, being gQ=k0T with k0=pi^2*2kB^2/3h (T - temperature, kB - Boltzmann's constant, h - Planck's constant),…
Magneto-Josephson effects in junctions with Majorana bound states
Liang Jiang, David Pekker, Jason Alicea +4
We investigate 1D quantum systems that support Majorana bound states at interfaces between topologically distinct regions. In particular, we show that there exists a duality betwee…
Spin configurations of carbon nanotube in a nonuniform external potential
Yuval Oreg, Krzysztof Byczuk, Bertrand I. Halperin
We study, theoretically, the ground state spin of a carbon nanotube in the presence of an external potential. We find that when the external potential is applied to a part of the n…
Fractional Conductance in Strongly Interacting 1D Systems
Gal Shavit, Yuval Oreg
We study one dimensional clean systems with few channels and strong electron-electron interactions. We find that in several circumstances, even when time reversal symmetry holds, t…
Adaptive tuning of Majorana fermions in a quantum dot chain
Ion C. Fulga, Arbel Haim, Anton R. Akhmerov +1
We suggest a way to overcome the obstacles that disorder and high density of states pose to the creation of unpaired Majorana fermions in one-dimensional systems. This is achieved…
Coulomb Drag in Systems with Tunneling Bridges
Yuval Oreg, Alex Kamenev
We study the Coulomb drag effect in double layer electronic systems with local tunneling links. The possibility of tunneling between the layers leads to a pronounced exchange contr…
DC--Transport in Quantum Wires
Yuval Oreg, Alexander M. Finkel'stein
The influence of electron--electron interaction on two terminal DC conductance of one--dimensional quantum wires is studied. A cancelation between the effect of the electron--elect…
Variable range hopping in the Coulomb glass
Ariel Amir, Yuval Oreg, Yoseph Imry
We use a mean-field (Hartree-like) approach to study the conductance of a strongly localized electron system in two dimensions. We find a crossover between a regime where Coulomb i…
Electron Scattering Through a Quantum Dot: A Phase Lapse Mechanism
Yuval Oreg, Yuval Gefen
The scattering phase shift of an electron transferred through a quantum dot is studied within a model Hamiltonian, accounting for both the electron--electron interaction in the dot…
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…
Phenomenological theory of heat transport in the fractional quantum Hall effect
Amit Aharon-Steinberg, Yuval Oreg, Ady Stern
The thermal Hall conductance is a universal and topological property which characterizes the fractional quantum Hall (FQH) state. The quantized value of the thermal Hall conductanc…
Novel method distinguishing between competing topological orders
Bivas Dutta, Wenmin Yang, Ron Aharon Melcer +6
Quantum Hall states - the progenitors of the growing family of topological insulators -- are rich source of exotic quantum phases. The nature of these states is reflected in the ga…
Dissipation and quantum phase transitions of a pair of Josephson junctions
Gil Refael, Eugene Demler, Yuval Oreg +1
A model system consisting of a mesoscopic superconducting grain coupled by Josephson junctions to two macroscopic superconducting electrodes is studied. We focus on the effects of…
Observation of the two-channel Kondo effect
R. M. Potok, I. G. Rau, Hadas Shtrikman +2
Some of the most intriguing problems in solid state physics arise when the motion of one electron dramatically affects the motion of surrounding electrons. Traditionally, such high…
Theory of Multi-Orbital Topological Superconductivity in Transition Metal Dichalcogenides
Gilad Margalit, Erez Berg, Yuval Oreg
We study possible superconducting states in transition metal dichalcogenide (TMD) monolayers, assuming an on-site pairing potential that includes both intra- and inter-orbital term…
Spectroscopic Visualization of a Robust Electronic Response of Semiconducting Nanowires to Deposition of Superconducting Islands
Jonathan Reiner, Abhay Kumar Nayak, Amit Tulchinsky +9
Following significant progress in the visualization and characterization of Majorana end modes in hybrid systems of semiconducting nanowires and superconducting islands, much atten…
Superconductivity and fermionic dissipation in quantum Hall edges
Noam Schiller, Barak A. Katzir, Ady Stern +3
Proximity-induced superconductivity in fractional quantum Hall edges is a prerequisite to proposed realizations of parafermion zero-modes. A recent experimental work [Gül et al.,…
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,…
Coulomb Drag in Normal Metals and Superconductors: Diagrammatic Approach
Alex Kamenev, Yuval Oreg
The diagrammatic linear response formalism for the Coulomb drag in two--layer systems is developed. This technique can be used to treat both elastic disorder and intralayer interac…