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Search Publications

NIST Authors in Bold

Displaying 151 - 175 of 3642

Filtering noise with a quantum probe

May 5, 2011
Author(s)
John J. Bollinger
… general terms the ideas behind the manuscript "Single-ion quantum lock-in amplifier" by Kotler and colleagues which is … a generalization of the concept of lock-in detection to a quantum probe. The authors experimentally demonstrate the quantum lock-in technique using a probe consisting of the …

A Quantum Algorithm Detecting Concentrated Maps

November 1, 2007
Author(s)
Isabel M. Beichl, Stephen Bullock, David Song
… We consider an arbitrary mapping for , some number of quantum bits. Using calls to a classical oracle evaluating … iff for some fixed and any . This manuscript presents a quantum algorithm that distinguishes a -concentrated from a one-to-one in calls to a quantum oracle function with high probability. For rad., the …

High-performance semiconductor quantum dot-single- photon sources

June 3, 2021
Author(s)
Glenn S. Solomon
… Single photons are a key, fundamental element of most quantum optical technologies, be it for the development of large-scale quantum communication networks, for quantum simulation, or for connecting quantum memories in a … single photon source, quantum dot, quantum light …

Coupling Efficiencies in Single-Photon On-Demand Sources

February 1, 2004
Author(s)
Stefania Castelletto, Ivo P. Degiovanni, M J. Ware, Alan L. Migdall
… Many quantum computation and communication schemes require, or … Downconversion, fiber coupling, parametric, quantum communication … Quantum Communications and Quantum Imaging, Conference | | Quantum Communications and …

Precision Bounds on Continuous-Variable State Tomography Using Classical Shadows

March 18, 2024
Author(s)
Srilekha Gandhari, Victor Albert, Thomas Gerrits, Jacob Taylor, Michael Gullans
… is a framework for constructing succinct descriptions of quantum states, called classical shadows, with powerful … Here, we extend this framework to continuous-variable quantum systems, such as optical modes and harmonic … Physical Review X - Quantum … Quantum information science, quantum tomography, continuous …

Logical quantum processor based on reconfigurable atom arrays

December 6, 2023
Author(s)
Dolev Bluvstein, Simon Evered, Alexandra Geim, Sophie Li, Hengyun Zhou, Tom Manovitz, Sepehr Ebadi, Madelyn Cain, Marcin Kalinowski, Dominik Hangleiter, J. Pablo Bonilla Ataides, Nishad Maskara, Iris Cong, Xun Gao, Pedro Rodriguez, Thomas Karolyshyn, Giulia Semeghini, Michael Gullans, Markus Greiner, Vladan Vuletic, Mikahil Lukin
… Suppressing errors is the central challenge for useful quantum computing and quantum error correction is believed to be the key to large-scale quantum processing. Here we report the realization of a … Quantum computing, quantum error correction, quantum algorithms, neutral atom …

The Future of Quantum Based Measurements and the SI

December 1, 2017
Author(s)
Carl J. Williams
… history of metrology made possible by the growing use of quantum-based standards and measurements. This development … economy, figuring critically in 80% of all global trade. Quantum metrology is desirable in itself because it promises … will be based on fundamental constants that are based on quantum phenomena. What will quantum metrology mean in …

Quantum Plexcitonic Sensing

October 11, 2023
Author(s)
Peng Zheng, Stephen Semancik, Ishan Barman
… Quantum sensing is poised to deliver unparalleled performance … to its classical counterpart. While fundamental to quantum sensing, quantum state control has been traditionally limited to … quantum sensing, plexciton, plasmon, Rabi splitting, strong … Quantum Plexcitonic Sensing …

Machine Learning techniques for state recognition and auto-tuning in quantum dots

January 20, 2019
Author(s)
Sandesh Kalantre, Justyna Zwolak, Stephen Ragole, Xingyao Wu, Neil M. Zimmerman, Michael Stewart, Jacob Taylor
… Recent progress in building large-scale quantum devices for exploring quantum computing and simulation paradigms has relied upon … i.e. tuning up devices. In many cases, including in quantum-dot based architectures, the parameter space grows … npj Quantum Information …

Liquid state NMR simulations of quantum many-body problems

January 1, 2005
Author(s)
C. Negrevergne, Rolando Somma, Gerardo Ortiz, Emanuel Knill, R. Laflamme
… Recently developed quantum algorithms suggest that in principle, quantum computers (QCs) can solve problems such as simulation … As a small- scale demonstration of this capability of quantum computers, we simulate a simple many-fermion problem, … Fano-Anderson model, liquid state NMR quantum computing, quantum computing, quantum physics …

Quantum-enhanced sensing of a mechanical oscillator

July 22, 2019
Author(s)
Katherine C. McCormick, Jonas Keller, Shaun C. Burd, David J. Wineland, Andrew C. Wilson, Dietrich Leibfried
… The use of special quantum states in interferometry with bosons to achieve … reaches the full interferometric sensitivity allowed by quantum mechanics is an equal superposition of two … on a coherent state with the same average occupation. The quantum advantage from using number-state superpositions can …

Sisyphus Thermalization of Photons in a Double Quantum Dot

July 29, 2016
Author(s)
Michael Gullans, J. Stehlik, Y.-Y. Liu, Christopher Eichler, Jason Petta, Jacob M. Taylor
… A strongly driven quantum system coupled to a thermalizing bath generically … resonator interacting with a periodically driven double quantum dot (DQD). In the limit of strong driving and long … with current devices and would have broad utility for quantum simulation in circuit quantum electrodynamics. As an …

The SI and Quantum Metrology

December 1, 2017
Author(s)
Carl J. Williams
… many cases, units will be redefined in terms of invariant quantum phenomena. So to a great degree, the progress of … sensitive, accurate, and repeatable measurements of quantum processes. Within NIST, that effort is the … International System of Units, Quantum Based Measurements, Quantum Metrology …

Liquid State NMR as a Test-bed for Developing Quantum Control Methods

July 15, 2008
Author(s)
C. A. Ryan, C. Negrevergne, M. Laforest, Emanuel Knill, R. Laflamme
… Quantum mechanics has been successfully describing … it has only been much more recently that the idea of using quantum mechanical evolution to process information was … way we view the complexity of information processing, and quantum information processing (QIP) devices may be able to …

Digital Control of Superconducting Qubit Using a Josephson Pulse Generator at 3K

March 25, 2022
Author(s)
Logan Howe, Manuel Castellanos Beltran, Adam Sirois, David Olaya, John Biesecker, Paul Dresselhaus, Samuel P. Benz, Pete Hopkins
… Scaling of quantum computers to fault-tolerant levels relies critically … the mixing-chamber stage in highly scaled superconducting quantum information systems. … PRX Quantum … Quantum computing, scalable, cryogenic control, Josephson junction (JJ), Single Flux Quantum (SFQ), qubit, transmon, superconductor, voltage …

Quantum Computer Architecture Using Nonlocal Interactions

May 1, 2003
Author(s)
G K. Brennen, D Song, Carl J. Williams
… the basic requirements essential to building a scalable quantum computer. Because many physical implementation schemes for quantum computing rely on nearest neighbor interactions, there is a hidden quantum communication overhead to connect distant memory … computer architectures, quantum information …

Experimental Ambitions for DC-Area Quantum Network Testbed

March 23, 2023
Author(s)
Oliver T. Slattery, Adam Black
… Quantum networks [1] bear the promise of one day enabling … applications such as secure communications, distributed quantum computing, distributed sensing, and time … non-proprietary environment for test and evaluation of quantum networking concepts, components, protocols, and …

Temperature dependence of quantum dot homogeneous linewidth

May 26, 2006
Author(s)
Joseph J. Berry, Martin Stevens, Richard Mirin, Kevin L. Silverman
… of the ground state homogeneous linewidth in InGaAs/GaAs quantum dots. Measurements are performed on quantum dots in a semiconductor waveguide. … quantum Dot, spectroscopy … Temperature dependence of quantum dot homogeneous linewidth …

Modeling Quantum Information Systems

December 1, 2004
Author(s)
Paul E. Black, Andrew W. Lane
… A simulator for quantum information systems cannot be both general, that is, … in a real system. We illustrate with examples from our quantum computing simulator, QCSim. We model the [3,1] … Quantum Information and Quantum Computing II, Defense and Security, SPIE, Orlando, …

Quadrature Histograms in Maximum Likelihood Quantum State Tomography

August 22, 2018
Author(s)
Leonardo E. Silva, Scott Glancy, Hilma H. Macedo De Vasconcelos
… Quantum state tomography aims to determine the quantum state of a system from measured data and is an essential tool for quantum information science. When dealing with continuous … quantum information, quantum tomography, homodyne detection, histogram … Quadrature Histograms in Maximum Likelihood Quantum State Tomography …

Quantum-Critical Scale Invariance in Transition Metal Alloy

October 14, 2020
Author(s)
Yasuyuki Nakajima, Tristin Metz, Christoper Eckberg, Kevin Kirshenbaum, Alex Hughes, Renxiong Wang, Limin Wang, Shanta Saha
… Quantum-mechanical fluctuations between competing phases at Τ … and thermodynamic properties [5] in the vicinity of a quantum critical point, and are often intimately linked to … superconductivity, however, precludes direct access to the quantum critical point, and makes it difficult to assess the …

Precise evaluation of the 129 k? and 1 M? quantum Hall array devices for a quantum Wheatstone bridge

August 24, 2020
Author(s)
Takehiko Oe, Alireza R. Panna, Randolph E. Elmquist, Dean G. Jarrett, Yasuhiro Fukuyama, Nobu-Hisa Kaneko
… We have fabricated 129 kΩ and 1 MΩ quantum Hall array devices using GaAs/AlGaAs heterostructures … and electrical insulation measurements. Given these quantum Hall array devices, an accuracy of better than 1×10-7 … measurements will be achieved, through a simple cryogenic quantum Wheatstone bridge technique. These devices could also …

Low temperature optical photon detectors for quantum information applications

March 11, 2004
Author(s)
Sae Woo Nam, Aaron J. Miller, Danna Rosenberg
… optical photon detectors in a variety of applications in quantum information science and technology. These … extremely low dark count rates, high count rates, high quantum efficiency, and moderate energy resolution for IR to optical photons. We describe three applications, quantum key distribution (QKD), quantum optics with …

Multiphoton quantum metrology with neither pre- nor post-selected measurements

October 21, 2021
Author(s)
Chenglong You, Mingyuan Hong, Peter Bierhorst, Adriana Lita, Scott Glancy, Steven Kolthammer, Emanuel Knill, Sae Woo Nam, Richard Mirin, Omar Magana-Loaiza, Thomas Gerrits
… The quantum statistical fluctuations of the electromagnetic field … on classical technologies, which can be lifted by quantum technologies. In this regard, the possibility of using every photon produced by quantum sources of light to estimate small physical … quantum enhanced sensing, quantum metrology, transition edge …

Quantum-Computer Architecture Using Nonlocal Interactions

May 1, 2003
Author(s)
G K. Brennen, D Song, Carl J. Williams
… Many protocols for quantum information processing use a control sequence or … qubits are restricted to nearest neighbor interactions and quantum wires between distant qubits do not exist. Because of … with scalability. In this paper we describe a generalized quantum architecture that provides efficient nonlocal …
Displaying 151 - 175 of 3642
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