3.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of Maryland, College ParkUS1.9k papers
- National Institute of Standards and TechnologyUS828 papers
- Joint Center for Quantum Information and Computer ScienceUS359 papers
- University of DelawareUS94 papers
- Harvard UniversityUS82 papers
- University of Colorado BoulderUS73 papers
- California Institute of TechnologyUS61 papers
- Princeton UniversityUS61 papers
- University of California, Santa BarbaraUS60 papers
- Joint Institute for Laboratory AstrophysicsUS52 papers
- DEVCOM Army Research LaboratoryUS51 papers
- Massachusetts Institute of TechnologyUS50 papers
34 papers · 2 filters
Large Stark Tuning of InAs/InP Quantum Dots
Shahriar Aghaeimeibodi, Chang-Min Lee, Mustafa Atabey Buyukkaya +2
InAs/InP quantum dots are excellent sources of telecom single-photon emission and are among the most promising candidates for scalable quantum photonic circuits. However, geometric…
Fluctuation-induced torque on a topological insulator out of thermal equilibrium
M. F. Maghrebi, A. V. Gorshkov, J. D. Sau
Topological insulators with the time reversal symmetry broken exhibit strong magnetoelectric and magneto-optic effects. While these effects are well-understood in or near equilibri…
Tunable surface plasmons in Weyl semimetals TaAs and NbAs
Gennaro Chiarello, Johannes Hofmann, Zhilin Li +5
By means of high-resolution electron energy loss spectroscopy, we investigate the low-energy excitation spectrum of transition-metal monopnictides hosting Weyl fermions. We observe…
Conductance feature smearing and anisotropic suppression of induced superconductivity in a Majorana nanowire
Chun-Xiao Liu, Jay D. Sau, Tudor D. Stanescu +1
In a recent high-quality experimental work on normal metal--superconducting nanowire junctions arXiv:1807.01940 (2018), strong anisotropic suppression of induced superconductivity…
Phonon-induced giant linear-in- resistivity in magic angle twisted bilayer graphene: Ordinary strangeness and exotic superconductivity
Fengcheng Wu, Euyheon Hwang, Sankar Das Sarma
We study the effect of electron-acoustic phonon interactions in twisted bilayer graphene on resistivity in the high-temperature transport and superconductivity in the low-temperatu…
Curvature of gap closing features and the extraction of Majorana nanowire parameters
Haining Pan, Jay D. Sau, Tudor D. Stanescu +1
Recent tunneling conductance measurements of Majorana nanowires show a strong variation in the magnetic field dependence of the superconducting gap among different devices. Here, w…
Incorporation of random alloy GaBiAs barriers in InAs quantum dot molecules (I): energy levels and confined hole states
Arthur Lin, Matthew F. Doty, Garnett W. Bryant
Self-assembled InAs quantum dots (QDs), which have long hole-spin coherence times and are amenable to optical control schemes, have long been explored as building blocks for qubit…
Conditions allowing error correction in driven qubits
Robert E. Throckmorton, S. Das Sarma
We consider a qubit that is driven along its logical axis, with noise along the axis in the driving field proportional to some function , as well as noise along t…
Wiedemann-Franz law and Fermi liquids
Ali Lavasani, Daniel Bulmash, Sankar Das Sarma
We consider in depth the applicability of the Wiedemann-Franz (WF) law, namely that the electronic thermal conductivity () is proportional to the product of the absolute tempera…
Simulation of Coupling Strength of Capacitively Coupled Singlet-Triplet Qubits
Donovan Buterakos, Robert E. Throckmorton, S. Das Sarma
We consider a system of two purely capacitively-coupled singlet-triplet qubits, and numerically simulate the energy structure of four electrons in two double quantum dots with a la…
Quasiparticle gaps in multiprobe Majorana nanowires
Yingyi Huang, Jay D. Sau, Tudor D. Stanescu +1
We theoretically study a spin-orbit-coupled nanowire proximitized by a superconductor in the presence of an externally applied Zeeman field ("Majorana nanowire") with zero-energy M…
Cavity superconductor-polaritons
Andrew A. Allocca, Zachary M. Raines, Jonathan B. Curtis +1
Following the recent success of realizing exciton-polariton condensates in cavities, we examine the hybridization of cavity photons with the closest analog of excitons within a sup…
Hierarchical Majoranas in a Programmable Nanowire Network
Zhi-Cheng Yang, Thomas Iadecola, Claudio Chamon +1
We propose a hierarchical architecture for building "logical" Majorana zero modes using "physical" Majorana zero modes at the Y-junctions of a hexagonal network of semiconductor na…
Plasmon-pole approximation for many-body-effects in extrinsic graphene
E. H. Hwang, Robert E. Throckmorton, S. Das Sarma
We develop the plasmon-pole approximation (PPA) theory for calculating the carrier self-energy of extrinsic graphene as a function of doping density within analytical approximation…
Topological insulators in twisted transition metal dichalcogenide homobilayers
Fengcheng Wu, Timothy Lovorn, Emanuel Tutuc +2
We show that moiré bands of twisted homobilayers can be topologically nontrivial, and illustrate the tendency by studying valence band states in valleys of twisted bilayer…
Ballistic reversible gates matched to bit storage: Plans for an efficient CNOT gate using fluxons
Kevin D. Osborn, Waltraut Wustmann
New computing technologies are being sought near the end of CMOS transistor scaling, meanwhile superconducting digital, i.e., single-flux quantum (SFQ), logic allows incredibly eff…
Observation of perfect Andreev reflection due to Klein paradox in a topological superconducting state
Seunghun Lee, Valentin Stanev, Xiaohang Zhang +11
In 1928, P. Dirac proposed a new wave equation to describe relativistic electrons. Shortly afterwards, O. Klein solved a simple potential step problem for the Dirac equation and st…
Fractional Josephson Effect with and without Majorana Zero Modes
Ching-Kai Chiu, S. Das Sarma
It is known that the low-energy physics of the Josephson effect in the presence of Majorana zero modes exhibits a periodicity as the Aharonov-Bohm flux varies in contrast to t…
Metamorphosis of Andreev bound states into Majorana bound states in pristine nanowires
Yingyi Huang, Haining Pan, Chun-Xiao Liu +3
We show theoretically that in the generic finite chemical potential situation, the clean superconducting spin-orbit-coupled nanowire has two distinct nontopological regimes as a fu…
Topological band crossings in hexagonal materials
Jonathan Zhang, Y. -H. Chan, Ching-Kai Chiu +3
Topological semimetals exhibit band crossings near the Fermi energy, which are protected by the nontrivial topological character of the wave functions. In many cases, these topolog…
Failure of Kohn's theorem and the apparent failure of the -sum rule in intrinsic Dirac-Weyl materials in the presence of a filled Fermi sea
Robert E. Throckmorton, S. Das Sarma
Kohn's theorem and the -sum rule are powerful theorems, the first applying to translationally invariant single-band electronic systems with parabolic electronic dispersion relat…
Phonon-induced Majorana Qubit Relaxation in Tunnel-Coupled Two-Island Topological Superconductors
Yang Song, S. Das Sarma
A Majorana-based qubit can form within the fermion parity subspace of a two-island topological superconductor setup consisting of four Majorana zero modes. We study the relaxation…
Dissipation-enabled fractional Josephson effect
Doru Sticlet, Jay D. Sau, Anton Akhmerov
The anomalous -periodic ac Josephson effect, a hallmark of topological Josephson junctions, was experimentally observed in a quantum spin Hall insulator. This finding is unexpe…
Diluted magnetic Dirac-Weyl materials: Susceptibility and ferromagnetism in three-dimensional chiral gapless semimetals
Sanghyun Park, Hongki Min, E. H. Hwang +1
We theoretically investigate the temperature-dependent static susceptibility and long-range magnetic coupling of three-dimensional (3D) chiral gapless electron-hole systems (semime…