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
31 papers · 2 filters
Improving the gate fidelity of capacitively coupled spin qubits
Xin Wang, Edwin Barnes, S. Das Sarma
Capacitively coupled semiconductor spin qubits hold promise as the building blocks of a scalable quantum computing architecture with long-range coupling between distant qubits. How…
Charged skyrmions on the surface of a topological insulator
Hilary M. Hurst, Dmitry K. Efimkin, Jiadong Zang +1
We consider the interplay between magnetic skyrmions in an insulating thin film and the Dirac surface states of a 3D topological insulator (TI), coupled by proximity effect. The ma…
Analytical approach to swift nonleaky entangling gates in superconducting qubits
Sophia E. Economou, Edwin Barnes
We develop schemes for designing pulses that implement fast and precise entangling quantum gates in superconducting qubit systems despite the presence of nearby harmful transitions…
A self-calibrating optomechanical force sensor with femtonewton resolution
John Melcher, Julian Stirling, Felipe Guzman Cervantes +2
We report the development of an ultrasensitive optomechanical sensor designed to improve the accuracy and precision of force measurements with atomic force microscopy. The sensors…
Excitonic and Nematic Instabilities on the Surface of Topological Kondo Insulators
Bitan Roy, Johannes Hofmann, Valentin Stanev +2
We study the effects of strong electron-electron interactions on the surface of cubic topological Kondo insulators (such as samarium hexaboride, SmB). Cubic topological Kondo i…
Interacting Dirac liquid in three-dimensional semimetals
Johannes Hofmann, Edwin Barnes, S. Das Sarma
We study theoretically the properties of the interacting Dirac liquid, a novel three-dimensional many-body system which was recently experimentally realized and in which the electr…
Formation of Strain-Induced Quantum Dots in Gated Semiconductor Nanostructures
Ted Thorbeck, Neil M. Zimmerman
Elastic strain changes the energies of the conduction band in a semiconductor, which will affect transport through a semiconductor nanostructure. We show that the typical strains i…
Which resonances in small metallic nanoparticles are plasmonic?
Emily Townsend, Garnett W Bryant
We use time-dependent density functional theory to examine the character of various resonances corresponding to peaks in the optical response of small metallic nanoparticles. Each…
Resonant Faraday and Kerr effects due to in-gap states on the surface of a topological insulator
Justin H. Wilson, Dmitry K. Efimkin, Victor M. Galitski
When Dirac electrons on the surface of a topological insulator are gapped, the resulting quantum anomalous Hall effect leads to universal magneto-optical Faraday and Kerr effects i…
Capacitively coupled singlet-triplet qubits in the double charge resonant regime
V. Srinivasa, J. M. Taylor
We investigate a method for entangling two singlet-triplet qubits in adjacent double quantum dots via capacitive interactions. In contrast to prior work, here we focus on a regime…
An apparent metal insulator transition in high mobility 2D InAs heterostructures
J. Shabani, S. Das Sarma, C. J. Palmstrøm
We report on the first experimental observation of an apparent metal insulator transition in a 2D electron gas confined in an InAs quantum well. At high densities we find that the…
Majorana fermions in ferromagnetic chains on the surface of bulk spin-orbit coupled -wave superconductors
Hoi-Yin Hui, P. M. R. Brydon, Jay D. Sau +2
Majorana fermion (MF) excitations in solid state system have non-Abelian statistics which is essential for topological quantum computation. Previous proposals to realize MF, howeve…
Topological Yu-Shiba-Rusinov chain from spin-orbit coupling
P. M. R. Brydon, S. Das Sarma, Hoi-Yin Hui +1
We investigate the possibility of realizing a topological state in the impurity band formed by a chain of classical spins embedded in a two-dimensional singlet superconductor with…
Noise-compensating pulses for electrostatically controlled silicon spin qubits
Xin Wang, Fernando A. Calderon-Vargas, Muhed S. Rana +3
We study the performance of SUPCODE---a family of dynamically correcting pulses designed to cancel simultaneously both Overhauser and charge noise for singlet-triplet spin qubits--…
Tunneling transport in NSN junctions made of Majorana nanowires across the topological quantum phase transition
Alejandro M. Lobos, S. Das Sarma
We theoretically consider transport properties of a normal metal (N)- superconducting semiconductor nanowire (S)-normal metal (N) structure (NSN) in the context of the possible exi…
Magnetic and orbital instabilities in a lattice of SU(4) organometallic Kondo complexes
Alejandro M. Lobos, Armando A. Aligia
Motivated by experiments of scanning tunneling spectroscopy (STS) on self-assembled networks of iron(II)-phtalocyanine (FePc) molecules deposited on a clean Au(111) surface [FePc/A…
Chiral Symmetry Breaking and the Quantum Hall Effect in Monolayer Graphene
Bitan Roy, Malcolm P. Kennett, S. Das Sarma
Monolayer graphene in a strong magnetic field exhibits quantum Hall states at filling fractions and that are not explained within a picture of noninteracting elec…
Signatures of localization in the effective metallic regime of high mobility Si MOSFETs
S. Das Sarma, E. H. Hwang, K. Kechedzhi +1
Combining experimental data, numerical transport calculations, and theoretical analysis, we study the temperature-dependent resistivity of high-mobility 2D Si MOSFETs to search for…
Why does graphene behave as a weakly interacting system?
Johannes Hofmann, Edwin Barnes, S. Das Sarma
We address the puzzling weak-coupling perturbative behavior of graphene interaction effects as manifested experimentally, in spite of the effective fine structure constant being la…
Surface Theory of a Family of Topological Kondo Insulators
Bitan Roy, Jay D. Sau, Maxim Dzero +1
A low-energy theory for the helical metallic states, residing on the surface of cubic topological Kondo insulators, is derived. Despite our analysis being primarily focused on a pr…
Constructing a Weyl semimetal by stacking one dimensional topological phases
Sriram Ganeshan, S. Das Sarma
Topological semimetals in three-dimensions (e.g. Weyl semimetal) can be built by stacking two dimensional topological phases. The interesting aspect of such a construction is that…
Transport in two-dimensional disordered semimetals
Michael Knap, Jay D. Sau, Bertrand I. Halperin +1
We theoretically study transport in two-dimensional semimetals. Typically, electron and hole puddles emerge in the transport layer of these systems due to smooth fluctuations in th…
A Strongly-Interacting Dirac Liquid on the Surface of a Topological Kondo Insulator
Dmitry K. Efimkin, Victor Galitski
A topological Kondo insulator (TKI) is a strongly-correlated material, where hybridization between the conduction electrons and localized f-electrons gives rise to a crossover from…
Induced self-stabilization in fractional quantum Hall states of light
Eliot Kapit, Mohammad Hafezi, Steven H. Simon
Recent progress in nanoscale quantum optics and superconducting qubits has made the creation of strongly correlated, and even topologically ordered, states of photons a real possib…