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NIST Authors in Bold

Displaying 676 - 700 of 3643

Neutron, Electron, and X-ray Scattering Investigation of Cr 1-x V x Near Quantum Criticality

July 29, 2014
Author(s)
D. A. Sokolov, M. C. Aronson, L. Wu, Y. Zhu, C. Nelson, J. F. Mansfield, K. Sun, Ross Erwin, Jeffrey W. Lynn, M. Lumsden, S. E. Nagler
… of the spin density wave and avoids the formation of a quantum critical point by stabilising a new type of charge … excess of 400 K. Restructuring of the Fermi surface near quantum critical points is a feature found in materials as … Neutron Diffraction, Spin density wave, charge order, quantum critical point, Fermi surface reconstruction …

Quantum Spin Fluctuations in the Spin Liquid State of Tb 2 Ti 2 O^d7&

December 7, 2011
Author(s)
Hiroshi Takatsu, Hiroaki Kadowaki, Taku J. Sato, Yohiikazu Tabata, Jeffrey W. Lynn, Teruo Yamazaki, Kazuyuki Matsuhira
… paramagnetic state to a spin-liquid ground-state with quantum spin fluctuations. Energy spectra change from … Magnet, inelastic neutron scattering, spin liquid, quantum spin flucutations, pyrochlore magnet … Quantum Spin Fluctuations in the Spin Liquid State of Tb 2 Ti …

An atomic interface between microwave and optical photons

February 22, 2012
Author(s)
Mohammad Hafezi, Zaeill Kim, Steven L. Rolston, Luis A. Orozco, Benjamin Lev, Jacob M. Taylor
… A complete physical approach to quantum information requires a robust interface among flying … and optical photons, potentially connecting engineerable quantum devices such as superconducting qubits at long … uses an ultracold ensemble of atoms for two purposes: quantum memory and to transduce excitations between the two …

Ancilla assisted calibration of a measuring apparatus

June 19, 2012
Author(s)
Alan L. Migdall, Giorgio Brida, L. Ciavarella, Ivo P. Degiovanni, Marco Genovese, M. G. Mingolla, M. G. A. Paris, Fabrizio Piacentini, Sergey Polyakov
… The rapid development of quantum systems has enabled a wide range of novel and innovative technologies, from quantum information processing to quantum etrology and imaging [113], mainly based on optical … quantum information …

Overlap junctions for superconducting quantum electronics and amplifiers

May 25, 2020
Author(s)
Mustafa Bal, Junling Long, Ruichen Zhao, Haozhi Wang, Sungoh Park, Corey Rae H. McRae, Tongyu Zhao, Russell Lake, Daniil Frolov, Roman Pilipenko, Silvia Zorzetti, Alexander Romanenko, David P. Pappas
… Josephson junctions lie at the heart of superconducting quantum information processing. Previously, we demonstrated a … This allows us to fabricate other superconducting quantum devices. For example, we demonstrate an … circuit elements, Josephson junctions, superconducting quantum information processing, two-layer, …

NIST on a Chip: Photonic and Quantum-Based Sensors for Measurements of Pressure, Vacuum, Temperature and Beyond!

April 29, 2021
Author(s)
Jay H. Hendricks, Zeeshan Ahmed, Daniel Barker, Stephen Eckel, James A. Fedchak, Nikolai Klimov, Julia Scherschligt
… as the SI. Nested within this idea is the development of quantum-based standards for SI traceability, what NIST is now calling, QSI, or Quantum based International System of units. More … NOAC, NIST on a Chip, Quantum, International System of Units, SI, QSI, sensors, …

Scalable, High-Speed, Digital Single-Flux-Quantum Circuits at NIST

June 11, 2017
Author(s)
Pete Hopkins, Manuel Castellanos Beltran, Christine A. Donnelly, Paul Dresselhaus, David Olaya, Adam Sirois, Samuel P. Benz
… for designing and fabricating niobium-based single-flux quantum (SFQ) digital and mixed-signal circuits and show test … Rapid single flux quantum (RSFQ), single flux quantum, Josephson devices, Josephson junctions, Josephson … Scalable, High-Speed, Digital Single-Flux-Quantum Circuits at NIST …

LDPC for QKD Reconcilation

May 22, 2012
Author(s)
Alan Mink, Anastase Nakassis
… (LDPC) forward error correction algorithm adapted for the Quantum Key Distribution (QKD) protocol in a form readily … these various parity check matrices as a function of the quantum bit error rate. We also discuss the computational … Quantum Information & Computation …

Electron-Hole Correlations in Semiconductor Quantum Dots With Tight-Binding Wave Functions

May 1, 2001
Author(s)
S Lee, P. Jonsson, J W. Wilkins, Garnett W. Bryant, G Klimeck
… The electron-hole states of semiconductor quantum dots are investigated within the framework of … correlation, electronic structure, exchange, nanocrystal, quantum dot, semiconductor tight-binding … Electron-Hole Correlations in Semiconductor Quantum Dots With Tight-Binding Wave Functions …

Rectification in Quantum Hall Effect Devices Above Breakdown

March 1, 1999
Author(s)
Kevin C. Lee
… Three-terminal contract resistances of 180 contacts on 15 quantum Hall effect (QHE) devices were measured as a function … breakdown, hetelectron transport, Landau levels, quantum Hall effect, rectification … Rectification in Quantum Hall Effect Devices Above Breakdown …

Towards optical quantum information processing with quantum dots coupled to microstructures

June 3, 2021
Author(s)
Olivier Gazzano, Glenn S. Solomon
… Major improvements have been made on semiconductor quantum dot light sources recently and now they can be seen … as a serious candidate for near-future scalable photonic quantum information processing experiments. The three key … paper, we review the progress achieved recently on the quantum dot based single-photon sources. …

Protected Realizations of Quantum Information

January 1, 2006
Author(s)
Emanuel H. Knill
… There are two complementary approaches to realizing quantum information so that it is protected from a given set … Initialization-based error protection involves a quantum operation to be applied before error events occur. Operator quantum error correction, uses a recovery operation, which is …

Single-atom trapping in a metasurface-lens optical tweezer

August 1, 2022
Author(s)
Ting-Wei Hsu, Wenqi Zhu, Tobias Thiele, Mark Brown, Scott Papp, Amit Agrawal, Cindy Regal
… in optical tweezers have become an important platform for quantum simulation, computing, and metrology [1-3]. With … simplified and optimized designs for broad applications in quantum information with neutral atoms. … PRX Quantum …

Enhanced Quantum State Detection Efficiency Through Quantum Information Processing

January 1, 2005
Author(s)
T Schaetz, Murray D. Barrett, Dietrich G. Leibfried, Joseph W. Britton, J Chiaverini, Wayne M. Itano, John D. Jost, E Knill, Christopher Langer, David J. Wineland
… We investigate theoretically and experimentally how quantum state-detection efficiency is improved by the use of quantum information processing (QIP). Experimentally, we … qubit measurements need not be a limit to scalable quantum computation. … Enhanced Quantum State Detection Efficiency Through Quantum …

Dynamically Induced Symmetry Breaking and Out-of-Equilibrium Topology in a 1D Quantum System

September 16, 2022
Author(s)
Ian Spielman, Graham Reid, Alina Pineiro Escalera, Amilson R. Fritsch, Mingwu Lu
… We quenched between configurations and used a form of quantum state tomography, enabled by diabatically tuning … Quantum topology, dynamically induced symmetry breaking … Symmetry Breaking and Out-of-Equilibrium Topology in a 1D Quantum System …

Quantum Computing with Realistically Noisy Devices

October 1, 2005
Author(s)
Emanuel H. Knill
… There are quantum algorithms that can efficiently simulate quantum physics, factor large numbers and estimate integrals. As a result, quantum computers can solve otherwise intractable … Quantum Computing with Realistically Noisy Devices …

Strain Effects on the Electronic Structure of Strongly Coupled Self-Assembled InAs/GaAs Quantum Dots: Tight-Binding Approach

October 12, 2021
Author(s)
W Jaskolski, M Zielinski, Garnett W. Bryant, Javier Aizpurua
… of vertically stacked, double, self-assembled, InAs/GaAs quantum dots. The investigated dots are lens-shaped and are … also for strained dots. We also show that in double quantum dots there may exist bound and localized electron and … electronic structure, piezoelectricity strain, quantum dot, tight-binding Hamiltonian …
Displaying 676 - 700 of 3643
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