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
Sisyphus Thermalization of Photons in a Cavity-Coupled Double Quantum Dot
M. J. Gullans, J. Stehlik, Y. -Y. Liu +3
We investigate the non-classical states of light that emerge in a microwave resonator coupled to a periodically-driven electron in a nanowire double quantum dot (DQD). Under certai…
Filter function formalism beyond pure dephasing and non-Markovian noise in singlet-triplet qubits
Edwin Barnes, Mark S. Rudner, Frederico Martins +3
The filter function formalism quantitatively describes the dephasing of a qubit by a bath that causes Gaussian fluctuations in the qubit energies with an arbitrary noise power spec…
Noise suppression using symmetric exchange gates in spin qubits
Frederico Martins, Filip K. Malinowski, Peter D. Nissen +6
We demonstrate a substantial improvement in the spin-exchange gate using symmetric control instead of conventional detuning in GaAs spin qubits, up to a factor-of-six increase in t…
Quantum phases of interacting electrons in three-dimensional dirty Dirac semimetals
Bitan Roy, Sankar Das Sarma
We theoretically study the stability of three dimensional Dirac semimetals against short-range electron-electron interaction and quenched time-reversal symmetric disorder (but excl…
Nonlinear microwave photon-occupancy of a driven resonator strongly coupled to a transmon qubit
Baladitya Suri, Zach Keane, Lev S. Bishop +3
We measure photon-occupancy in a thin-film superconducting lumped element resonator coupled to a transmon qubit at 20mK and find a nonlinear dependence on the applied microwave…
Noise-induced collective quantum state preservation in spin qubit arrays
Edwin Barnes, Dong-Ling Deng, Robert E. Throckmorton +2
The hyperfine interaction with nuclear spins (or, Overhauser noise) has long been viewed as a leading source of decoherence in individual quantum dot spin qubits. Here we show that…
Role of boundary conditions, topology and disorder in the chiral magnetic effect in Weyl semimetals
Yahya Alavirad, Jay D. Sau
Quantum field theory predicts Weyl semimetals to possess a peculiar response of the longitudinal current density to the application of a DC magnetic field. Such a response function…
Temperature-dependent many-body effects in Dirac-Weyl materials: Interacting compressibility and quasiparticle velocity
F. Setiawan, S. Das Sarma
We calculate, within the single-loop or equivalently the Hartree-Fock Approximation (HFA), the finite-temperature interacting compressibility for three-dimensional (3D) Dirac mater…
Gigantic surface life-time of an intrinsic topological insulator revealed via time-resolved (pump-probe) ARPES
Madhab Neupane, Su-Yang Xu, Yukiaki Ishida +11
The interaction between light and novel two-dimensional electronic states holds promise to realize new fundamental physics and optical devices. Here, we use pump-probe photoemissio…
Injection Locking of a Semiconductor Double Quantum Dot Micromaser
Y. -Y. Liu, J. Stehlik, M. J. Gullans +2
Emission linewidth is an important figure of merit for masers and lasers. We recently demonstrated a semiconductor double quantum dot (DQD) micromaser where photons are generated t…
Bulk disorder in the superconductor affects proximity-induced topological superconductivity
Hoi-Yin Hui, Jay D. Sau, S. Das Sarma
We investigate effects of ordinary nonmagnetic disorder in the bulk of a superconductor on magnetic adatom-induced Shiba states and on the proximity-induced superconductivity in a…
A new Regime of Pauli-Spin Blockade
Justin K. Perron, M. D. Stewart, Neil M. Zimmerman
Pauli-spin blockade (PSB) is a transport phenomenon in double quantum dots that allows for a type of spin to charge conversion often used to probe fundamental physics such as spin…
Semiconductor double quantum dot micromaser
Y. -Y. Liu, J. Stehlik, C. Eichler +3
The coherent generation of light, from masers to lasers, relies upon the specific structure of the individual emitters that lead to gain. Devices operating as lasers in the few-emi…
SU(3) Quantum Hall Ferromagnetism in SnTe
Xiao Li, Fan Zhang, A. H. MacDonald
The (111) surface of SnTe hosts one isotropic -centered and three degenerate anisotropic - centered Dirac surface states. We predict that a nematic phase with spont…
Optical Control of Donor Spin Qubits in Silicon
M. J. Gullans, J. M. Taylor
We show how to achieve optical, spin-selective transitions from the ground state to excited orbital states of group-V donors (P, As, Sb, Bi) in silicon. We consider two approaches…
Spontaneous symmetry breaking and quantum Hall valley ordering on the surface of topological hexaborides
Xiao Li, Bitan Roy, S. Das Sarma
A number of strongly correlated heavy fermion compounds, such as samarium (Sm), ytterbium (Yb), plutonium (Pu) hexaboride, are predicted to become topological insulators at low tem…
Continuous and discontinuous topological quantum phase transitions
Bitan Roy, Pallab Goswami, Jay D. Sau
The continuous quantum phase transition between noninteracting, time-reversal symmetric topological and trivial insulators in three dimensions is described by the massless Dirac fe…
Anomalous Coulomb Drag in Electron-Hole Bilayers due to the Formation of Excitons
Dmitry K. Efimkin, Victor Galitski
Several recent experiments have reported an anomalous temperature dependence of the Coulomb drag effect in electron-hole bilayers. Motivated by these puzzling data, we study theore…
Many-body effects and ultraviolet renormalization in three-dimensional Dirac materials
Robert E. Throckmorton, Johannes Hofmann, Edwin Barnes +1
We develop a theory for electron-electron interaction-induced many-body effects in three dimensional (3D) Weyl or Dirac semimetals, including interaction corrections to the polariz…
Classification of topological quantum matter with symmetries
Ching-Kai Chiu, Jeffrey C. Y. Teo, Andreas P. Schnyder +1
Topological materials have become the focus of intense research in recent years, since they exhibit fundamentally new physical phenomena with potential applications for novel devic…
Measurement of topological invariants in a 2D photonic system
Sunil Mittal, Sriram Ganeshan, Jingyun Fan +2
A hallmark feature of topological physics is the presence of one-way propagating chiral modes at the system boundary. The chirality of edge modes is a consequence of the topologica…
Cooling of Levitated Graphene Nanoplatelets in High Vacuum
Pavel Nagornykh, Joyce E. Coppock, B. E. Kane
We demonstrate cooling of the center of mass motion of charged graphene nanoplatelets levitated in a quadrupole ion trap in high vacuum down to temperatures of 20 K. Parametric fee…
Conductance spectroscopy of topological superconductor wire junctions
F. Setiawan, P. M. R. Brydon, Jay D. Sau +1
We study the zero-temperature transport properties of one-dimensional normal-superconductor (NS) junctions with topological superconductors across their topological transitions. Wo…
Axial anomaly and longitudinal magnetoresistance of a generic three dimensional metal
Pallab Goswami, J. H. Pixley, S. Das Sarma
We show that the emergence of the axial anomaly is a universal phenomenon for a generic three dimensional metal in the presence of parallel electric () and magnetic () fields…