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NIST Authors in Bold

Displaying 426 - 450 of 3643

Liquid-state NMR Simulations of Quantum Many-body Problems

April 1, 2005
Author(s)
C. Negrevergne, Rolando Somma, Gerardo Ortiz, Emanuel Knill, R. Laflamme
… form and so do not change the concurrence. Hence for a quantum computation v=k1 a k2, analysis of a in e A allows … in terms of a time-reversal symmetry operator, namely the quantum bit flip |?> ? (-i sy) (x)n | ?*> . In this context, … Fano-Anderson model, liquid state NMR quantum computing, quantum computing, quantum physics …

Optically Distributing Remote Two-Node Microwave Entanglement Using Doubly Parametric Quantum Transducers

July 6, 2023
Author(s)
Akira Kyle, Curtis Rau, William Warfield, Alexander Kwiatkowski, John Teufel, Konrad Lehnert, Tasshi Dennis
… Doubly parametric quantum transducers (DPTs), such as electro-optomechanical devices, show promise as quantum interconnects between the optical and microwave domains, thereby enabling long-distance quantum networks between superconducting qubit systems. … Quantum Networks, Optical Communications, Secure …

Edge channels of broken-symmetry quantum Hall states in graphene visualized by atomic force microscopy

May 14, 2021
Author(s)
Joseph A. Stroscio, Sungmin Kim, Johannes Schwenk, Daniel T. Walkup, Yihang Zeng, Fereshte Ghahari, Son T. Le, Marlou R. Slot, Julian Berwanger, Steven R. Blankenship, Kenji Watanabe, Takashi Taniguchi, Franz Giessibl, Nikolai Zhitenev, Cory Dean
… The quantum Hall (QH) effect, a topologically non-trivial quantum phase, expanded and brought into focus the concept of … topological order in physics. The topologically protected quantum Hall edge states are of crucial importance to the QH … graphene, atomic force microscopy, quantum hall effect …

Identification of the Low-Energy Excitations in a Quantum Critical System

December 20, 2016
Author(s)
Tom Heitmann, Jagat Lamsal, Shannon M. Watson, Ross Erwin, Wangchun Chen, Yang Zhao, Wouter Montfrooij
… have identified low-energy magnetic excitations in a doped quantum critical system by means of polarized neutron … quantum critical, hyperscaling … Identification of the Low-Energy Excitations in a Quantum Critical System …

Wavelength bistability in two-section mode-locked quantum-dot diode lasers

June 1, 2007
Author(s)
Mingming M. Feng, N. A. Brilliant, Steven T. Cundiff, Richard Mirin, Kevin L. Silverman
… We report a two-section mode-locked quantum dot laser with an emission wavelength that is … by the interplay of the spectral-hole burning and the quantum-confined Stark effect. … bistability, diode laser, modelocking, quantum dot … Wavelength bistability in two-section mode-locked quantum-dot diode lasers …

Polar Codes for Quantum Key Distribution

December 14, 2017
Author(s)
Anastase Nakassis
… the performance of polar codes in the context of the quantum key distribution (QKD) protocol. It introduces the … frozen bits, polar codes, quantum key distribution (QKD), reconciliation. … Polar Codes for Quantum Key Distribution …

Spin-mechanical coupling of an InAs quantum dot embedded in a mechanical resonator

December 14, 2018
Author(s)
S G. Carter, A S. Bracker, Garnett W. Bryant, M Kim, C S. Kim, M Zalalutdinov, M. K. Yakes, C Czarnocki, J Casara, M Scheibner, D Gammon
… strain-induced coupling between a hole spin in a quantum dot and mechanical motion of a cantilever. The optical transitions of quantum dots integrated into GaAs mechanical resonators are … spin, quantum dots, mechanical resonators, photoluminescence, … Spin-mechanical coupling of an InAs quantum dot embedded in a mechanical resonator …

Constraints on Gaussian Error Channels and Measurements for Quantum Communication

April 10, 2023
Author(s)
Alexander T. Kwiatkowski, Ezad Shojaee, Sristy Agrawal, Akira Kyle, Curtis Rau, Scott Glancy, Emanuel Knill
… Joint Gaussian measurements of two quantum systems are important for quantum communication between remote parties and are often … quantum communication, Gaussian errors, entanglement … Constraints on Gaussian Error Channels and Measurements for Quantum Communication …

Quantum-enhanced sensing of displacements and electric fields with large trapped-ion crystals

August 6, 2021
Author(s)
Kevin Gilmore, Matthew Affolter, Judith Jordan, Diego Barberena, Robert Lewis-Swan, Ana Maria Rey, John J. Bollinger
… level of single quanta has led to significant advances in quantum sensing, yet demonstrating a quantum advantage in real world applications by harnessing … remains a core task. Here, we realize a many-body quantum-enhanced sensor to detect weak displacements and …

Constructing quantum many-body scar Hamiltonians from Floquet automata

November 22, 2022
Author(s)
Michael Gullans, Pierre-Gabriel Rozon, Kartiek Agarwal
… provide a systematic approach for constructing approximate quantum many-body scars (QMBS) starting from two-layer … quantum information, quantum simulation, statistical mechanics … Constructing quantum many-body scar Hamiltonians from Floquet automata …

Determination of the quantum yield of the ferrioxalate and KI/KIO3 actinometers and a method for the calibration of radiometer detectors

July 5, 2011
Author(s)
J R. Bolton, Michaela I. Stefan, Ping-Shine Shaw, Keith R. Lykke
… Abstract: The quantum yields for two popular actinometers have been … radiometer, considered accurate to better than 0.1%. The quantum yield at 253.7 nm for the ferrioxalate actinometer … value 1.40  0.03 determined by Goldstein and Rabani. The quantum yield at 253.7 nm for the KI/KIO3 actinometer was …

Quantum simulation and many-body physics with hundreds of trapped ions

September 14, 2013
Author(s)
John J. Bollinger, Joseph W. Britton, Brian C. Sawyer
… can be modified in a spin-dependent way to mimic effective quantum spin Hamiltonians. We use simple models to explain … ion trap, Ising model, Penning trap, quantum magnetism, quantum simulation … Quantum simulation and many-body physics with hundreds of …

Optical Radiation from Integer Quantum Hall States in Dirac Materials

June 30, 2017
Author(s)
Michael Gullans, Jacob M. Taylor, Mohammad Hafezi
… Quantum Hall systems exhibit topologically protected edge … Such edge states provide a unique opportunity to study a quantum emitter whose size far exceeds the wavelength of … characterize the optical radiation from integer quantum Hall states in two-dimensional Dirac materials. We …

Restrictions on Transversal Encoded Quantum Gate Sets

March 18, 2009
Author(s)
Bryan K. Eastin, Emanuel H. Knill
… play an important role in the theory of fault-tolerant quantum computation due to their simplicity and robustness to … cannot be universal. Here we show that the ability of a quantum code to detect an arbitrary error on any single … error detection, fault tolerance, quantum codes, transversal gates, universality …

Disseminable single-photon source for quantum radiometry

December 24, 2024
Author(s)
Hristina Georgieva, Thomas Gerrits, Lijun Ma, Riley Dawkins, Marco Lopez, Oliver Slattery, Sven Rodt, Stephan Reitzenstein, Alan Migdall, Stefan Kueck
… a disseminable single-photon source based on an InGaAs quantum dot in a micro-mesa. This source achieves a maximum … quantum dots, single-photon, single-photon detector calibration, single-photon source, quantum radiometry … Disseminable single-photon source for quantum radiometry …

Evaluating the security of CRYSTALS-Dilithium in the quantum random oracle model

April 29, 2024
Author(s)
Kelsey Jackson, Carl A. Miller, Daochen Wang
… In the wake of recent progress on quantum computing hardware, the National Institute of … cryptographic protocols that are resistant to attacks by quantum adversaries. The primary digital signature scheme … is novel and, though classically as hard as MSIS, its quantum hardness is unclear. In this paper, we provide the …

QDFlow: A Python package for physics simulations of quantum dot devices

March 3, 2026
Author(s)
Donovan Buterakos, Sandesh Kalantre, Joshua Ziegler, Jacob Taylor, Justyna Zwolak
… have accelerated progress in calibrating and operating quantum dot (QD) devices. However, most ML approaches rely on … diverse datasets for ML development, benchmarking, and quantum device research. … quantum dots, simulation, machine learning … QDFlow: A Python package for physics simulations of quantum dot devices …

Quantum Monte Carlo for Difficult Systems

February 1, 2001
Author(s)
J A. Harkless, W A. Lester, Jr.
… Quantum Monte Carlo for Difficult Systems … transition, peroxynitrite ion, propargyl radical, QMC, quantum Monte Carlo, transition energy … Quantum Monte Carlo for Difficult Systems …

Size-exclusion chromatography of metal nanoparticles and quantum dots

April 8, 2016
Author(s)
Leena M. Pitkanen, Andre Striegel
… characterization of noble metal nanoparticles (NPs) and quantum dots (QDs) over the past 25 years. The properties of NPs and QDs that originate from quantum and surface effects are size dependent; to … chromatography, characterisation, metal nanoparticles, quantum dots …

Photon-number-discriminating detection using a quantum-dot, optically gated, field-effect transistor

October 1, 2007
Author(s)
Eric Gansen, Mary A. Rowe, M. Greene, Danna Rosenberg, Todd E. Harvey, Mark Su, Robert Hadfield, Sae Woo Nam, Richard Mirin
… photon number of a pulse of light 1-3 enable linear optics quantum computing 4 , affect the security of quantum communications 5 , and can be used to characterize … demonstrate the photon-number-resolving capabilities of a quantum dot, optically gated, field-effect transistor that …

Quantum Charge Fluctuations and the Polarizability of the Single Electron Box

October 16, 2008
Author(s)
Konrad Lehnert, B A. Turek, K Bladh, L F. Spietz, D Gunnarsson, P Delsing
… between these measurements and a theory that treats the quantum fluctuations of charge perturbatively. … quantum charge fluctuations, single-electron circuits … Quantum Charge Fluctuations and the Polarizability of the …
Displaying 426 - 450 of 3643
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