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Search Publications

NIST Authors in Bold

Displaying 1651 - 1675 of 9850

Nonequilibrium dynamics of arbitrary-range Ising models with decoherence: An exact analytic solution

April 3, 2013
Author(s)
John J. Bollinger, Michael Foss-Feig, Kaden R. Hazzard, Ana Maria Rey
… in many-body systems is of fundamental importance in quantum physics: Decoherence can degrade correlations, but … These calculations will find applications in ongoing quantum information and emulation efforts using a variety of … decoherence, Ising models, non-equilibrium dynamics, quantum emulation, quantum information, spontaneous emission, …

Using realistic factors to simulate catastrophic congestion events in a network

November 1, 2017
Author(s)
Kevin L. Mills, Christopher E. Dabrowski
With the rapid growth of the Internet, there has been increased interest in the use of computer models to study the dynamics of communication networks in the research literature. An important example of this has been the study of dramatic, but relatively

A Modified Approach to de Broglie Wave Mechanics in Applied Electromagnetic Fields

October 21, 2003
Author(s)
James R. Baker-Jarvis, Pavel Kabos
… of the self-interaction wave. We also develop a novel quantum-mechanical, relativistic energy-momentum conservation equation using a complex quantum-mechanical, four vector. The analog to … electromagnetic energy conservation is used to understand quantum interactions. …

Entangled Mechanical Oscillators

June 4, 2009
Author(s)
John D. Jost, Jonathan Home, Jason Amini, David Hanneke, R. Ozeri, Christopher Langer, John J. Bollinger, Dietrich G. Leibfried, David J. Wineland
… Quantum mechanics describes the state and evolution of … with a separated mechanical oscillator. These results show quantum entanglement in a degree of freedom that pervades the … these experiments is an important ingredient to scale up quantum information processing based on trapped atomic ions. …

Developing Interoperable, Accessible Software via the Atomic, Molecular, and Optical Sciences Gateway: A Case Study of the B-spline atomic R-Matrix code Graphical User Interface

October 3, 2024
Author(s)
Barry I. Schneider, kathryn hamilton, Sudhakar Pamidighantam, Tom Wolcott
The Atomic, Molecular, and Optical Science Gateway\citeamosgateway} is a comprehensive cyber\-infrastructure for research and educational activities in computational AMO science. The \hbox$B$-Spline} atomic \hbox$R$-Matrix} (BSR) suite of programs is

Terabyte Size Image Computations on Hadoop Cluster Platforms

October 7, 2013
Author(s)
Peter Bajcsy, Antoine Vandecreme, Julien M. Amelot, Phuong T. Nguyen, Joe Chalfoun, Mary C. Brady
… a characterization of four basic terabyte size image computations on a Hadoop cluster in terms of their relative … By applying our methodology to assessing efficiencies of computations on computer cluster configurations, we could … Terabyte Size Image Computations on Hadoop Cluster Platforms …

A single-photon pump

August 25, 2006
Author(s)
Kevin Osborn, Mark W. Keller
… We describe a gated quantum dot device called a single-photon pump that produces … are possible, with one mode particularly attractive for quantum cryptography applications because it cannot produce … Coulomb Blockade, device, GaAs, quantum dot, single photon …

Measurement and Standards for Computational Science and Engineering

March 1, 1999
Author(s)
Ronald F. Boisvert, J L. Blue, Daniel W. Lozier, William F. Mitchell, Roldan Pozo, Michael J. Donahue, Donald G. Porter
… and standards technology to improve the practice of computational science and engineering. … Measurement and Standards for Computational Science and Engineering …

Coalescence of Single Photons Emitted by Disparate Single Photon Sources: The Example of InAs Quantum Dots and Parametric Down-Conversion Sources

October 5, 2011
Author(s)
Sergey V. Polyakov, Andreas Muller, Alexander E. Ling, Natalia B. Rutter, Edward B. Flagg, Edward Van Keuren, Alan L. Migdall, Glenn S. Solomon
… In quantum mechanics, particles in identical states are … be indistinguishable. We show how photons produced from a quantum dot and by parametric down-conversion in a nonlinear … coalescence probability is 16%, and is limited by quantum dot decoherence. This technique can connect different …

Computational Issues in the Kinematic Design

January 1, 1998
Author(s)
Walter W. Nederbragt, Bahram Ravani
… This paper discusses computational issues in kinematic design of tac- tile sensing … Computational Issues in the Kinematic Design …

Observation of Photons From an Inhibited Spontaneous Emitter

February 1, 2000
Author(s)
D A. Branning, Alan L. Migdall
… A fun and timely problem in cavity quantum electrodynamics is the question of whether atoms are … counterintuitively, is yes or more accurately, in the quantum-mechanical sense, yes and no. That is, even when … the field instead of the atom: the two are in an entangled quantum state that contains both possibilities. We have …

Production of Entangled Images by Four-Wave Mixing

December 1, 2008
Author(s)
Alberto M. Marino, Vincent Boyer, Raphael C. Pooser, Paul D. Lett
… One of the most important resources in quantum mechanics is entanglement, which is characterized by … As a result, it is at the basis of applications such as quantum cryptography, quantum information, teleportation, etc. The entanglement … mixing, nonlinear optics, quadrature entanglement, quantum imaging, spatial entanglement, squeezed light …

ASET-B: Comparison of Model Predictions With Full-Scale Test Data.

February 1, 2003
Author(s)
M J. Hurley
The proper use of computer fire models requies an understanding of their applicability and limitations, since all computer models are, at least to a certain extent, empirically based. Equations or constants used within computer models are frequently based

A Vision of Cyber-Physical Cloud Computing for Smart Networked Systems

August 26, 2013
Author(s)
Eric D. Simmon, Kyoung-sook Kim, Eswaran Subrahmanian, Ryong Lee, Frederic J. de Vaulx, Yohei Murakami, Koji Zettsu, Ram D. Sriram
… physical world. The modern CPS inspires a new vision of “computing as a physical act” where the real world is … and processing devices create a vast network of connected computing resources, things and humans that we will refer to … sensor/actuator networks, social networks, and cloud computing services. …

Capacitively coupled singlet-triplet qubits in the double charge resonant regime

December 1, 2015
Author(s)
Vanita Srinivasa, Jacob M. Taylor
… entangling two singlet-triplet qubits in adjacent double quantum dots via capacitive interactions. In contrast to … of phonon-induced decay for pairs of GaAs or Si double quantum dots vary with the sizes of the dipolar and … quantum dots, quantum gates, electron spin, qubits, quantum …

Measuring VHF Detector Linearity using a Quantum-Based Source

August 30, 2024
Author(s)
Jeremy Thomas, Nathan Flowers-Jacobs, Anna Fox, Alain Rufenacht, Paul Dresselhaus
… junctions located in a cryocooler and driven to produce quantum-based ac waveforms at frequencies up to 50.05 MHz and … is operating correctly by measuring the dc bias current quantum-locking range and then measure the system output … Measuring VHF Detector Linearity using a Quantum-Based Source …

Time-resolved double-slit interference pattern measurement with entangled photons

April 28, 2014
Author(s)
Lynden K. Shalm, Thomas Jennewein, Kevin Resch, Piotr Kolenderski, Carmelo Scarcella, Kelsey D. Johnsen Johnsen, Deny Hamel, Cahterine Holloway, Simone Tisa, Alberto Tosi
… strikingly demonstrates the wave-particle duality of quantum objects. In this famous experiment, particles pass … pattern. The analysis of the buildup allows us to compare quantum mechanics and the corpuscular model, which aims to … experiment, and can be used as a valuable resource in quantum information applications. …

Smart Card Technology: New Methods for Computer Access Control

September 1, 1988
Author(s)
Martha E. Haykin, Robert B. Warnar
… development. Possible roles for smart cards in modern computer security systems and research conducted at the … access control, authentication, biometrics, computer security, cryptography, Data Encryption Standard … Smart Card Technology: New Methods for Computer Access Control …

Tuning single-electron charging and interactions between compressible Landau level islands in graphene

January 29, 2020
Author(s)
Daniel T. Walkup, Fereshte Ghahari Kermani, Christopher Guti?rrez, Kenji Watanabe, Takashi Taniguchi, Nikolai B. Zhitenev, Joseph A. Stroscio
… Interacting quantum dots (QDs), small chunks of matter with … been extensively exploited in condensed matter physics and quantum information science. Using a low-temperature scanning … we create and study QDs in graphene, a highly interacting quantum relativistic system. Single or multiple interacting, …

An Updated Security Analysis of PFLASH

June 4, 2017
Author(s)
Ryann Cartor, Daniel Smith-Tone
… One application in post-quantum cryptography that appears especially difficult is … PQCrypto 2017: The Eighth International Conference on Post-Quantum Cryptography …

Firearm examination: Examiner judgments and computer-based comparisons

September 24, 2020
Author(s)
Erwin J. Mattijssen, Cilia Witteman, Charles Berger, Xiaoyu Alan Zheng, Johannes A. Soons, Reinoud Stoel
… cases. We assessed the validity of source decisions of a computer-based method and of 73 firearm examiners who … impressions of 48 comparisons sets. We also compared the computer-based method's comparison scores with the examiners' … of this study show that the source decisions of the computer-based method and the examiners were quite valid (TPR …
Displaying 1651 - 1675 of 9850
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