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Search Publications

NIST Authors in Bold

Displaying 1701 - 1725 of 9850

Temperature dependent 29Si incorporation during deposition of highly enriched 28Si films

November 16, 2017
Author(s)
Kevin J. Dwyer, Hyun S. Kim, David S. Simons, Joshua M. Pomeroy
… Enriched 28Si is a critical material in the development of quantum information devices because 28Si is free of nuclear spins that cause decoherence in a quantum system. We deposit epitaxial thin films of 28Si … vary the enrichment and measure the impact on quantum coherence. We use secondary ion mass spectrometry to …

Tungsten Transition-Edge Sensors for IR/Optical/UV Photon Counting

June 1, 2003
Author(s)
Aaron J. Miller, Sae Woo Nam, John M. Martinis, Alexander V. Sergienko
… to the applications of low-flux astronomy and photonic quantum information. The combination of high quantum efficiency, negligible dark count rate, and moderate … photon counting, quantum information, transition-edge sensor …

A Distributed Database Architecture for an Integrated Manufacturing Facility

July 1, 1987
Author(s)
V Krishnamurthy, Stanley Su, H Lam, Mary Mitchell, Edward J. Barkmeyer Jr.
A typical manufacturing facility uses a set of heterogeneous computer systems to support various design, planning, and manufacturing activities. These systems usually consist of different hardware (computers, NC machines, robots and workstations), software

Design Modeling With Shape Algebras and Formal Logic

September 1, 1996
Author(s)
Scott Chase
A new method of describing designs by combining the paradigms of shape algebras and predicate logic representations is presented. Representing shapes and spatial relations in logic provides a natural, intuitive method of developing complete computer

Towards integrated superconducting detectors on lithium niobate waveguides

August 29, 2017
Author(s)
Jan P. Hoepker, Moritz Bartnick, Evan Meyer-Scott, Frederik Thiele, Stephan Krapick, Nicola Montaut, Matteo Santandrea, Harald Herrmann, Sebastian Lengeling, Raimund Ricken, Victor Quiring, Torsten Meier, Adriana Lita, Varun Verma, Thomas Gerrits, Sae Woo Nam, Christine Silberhorn, Tim J. Bartley
… tools for low-light optics, and in particular quantum optics, boasting high-efficiency, fast response … conversion, as well as frequency conversion and sources of quantum light. Combining these technologies addresses the … platform capable of generating, manipulating and measuring quantum light in many degrees of freedom, in a compact and …

Adaptive measurements in nonorthogonal state discrimination

December 18, 2012
Author(s)
Francisco E. Becerra Chavez, Alan L. Migdall
… Adaptive measurements represent important resources in quantum information science and quan- tum technologies. They … adaptive measurements for an applications relevant to quantum information science and quantum communications, speci cally, for nonorthogonal state …

Application of the Josephson effect in electrical metrology

June 1, 2009
Author(s)
Samuel P. Benz, Blaise Jeanneret
… the last 30 years, metrology laboratories have used the quantum behavior of the Josephson effect to greatly improve … standards. Specifically, the technology and performance of quantum-accurate voltage standards is explained in detail, as … Josephson Effect will be presented and the importance of quantum-based electrical standards will be discussed. A …

Multiple-time-scale blinking in InAs quantum dot single photon sources

April 16, 2014
Author(s)
Marcelo I. Davanco, C S. Hellberg, Serkan Ates, Antonio Badolato, Kartik A. Srinivasan
… blinking in single, epitaxially-grown selfassembled InAs quantum dots situated in circular Bragg grating and microdisk … model from which the overall radiative efficiency of the quantum dot is estimated. … Multiple-time-scale blinking in InAs quantum dot single photon sources …

Coulomb Blockade in Single Tunnel-Junctions: Quantum Mechanical Effects of the Electromagnetic Environment

January 1, 1991
Author(s)
K Flensberg, S Girvin, M Jonson, David R. Penn, Mark D. Stiles
… across the junction. We treat these displaced oscillators quantum mechanically, predicting behavior that is very … with three recent experiments demonstrates that the quantum mechanical treatment of this model correctly … Coulomb Blockade in Single Tunnel-Junctions: Quantum Mechanical Effects of the Electromagnetic Environment …

What happens to entropy production when conserved quantities fail to commute with each other

May 24, 2023
Author(s)
Twesh Upadhyaya, William Braasch, Gabriel Landi, Nicole Halpern
… We extend entropy production to a deeply quantum regime involving noncommuting conserved quantities. … with each other (e.g., energy and particle number). Yet quantum charges can fail to commute. Noncommutation invites … thermodynamics to noncommuting - and so particularly quantum - charges. …

Direct Calibration of Laser Intensity via Ramsey Interferometry for Cold Atom Imaging

May 11, 2023
Author(s)
Emine Altuntas, Ian Spielman
… in units of the atomic saturation intensity Isat. In quantum gas experiments, the atomic sample is enclosed in an … a direct determination of the intensity. Here, we use quantum coherence to create a robust technique for measuring … direct calibration of imaging system losses as well as the quantum efficiency of the sensor. …

Towards Quantum Degeneracy of Bosonic and Fermionic Potassium Atoms

November 1, 1999
Author(s)
F S. Cataliotti, Eric A. Cornell, C Fort, M Inguscio, M Prevedelli, G M. Tino
… cooling of bosonic and fermionic potassium atoms towards quantum degeneracy. Further details on these experiments can … prospects are now the extension of the investigation of quantum degeneracy effects to other bosonic species (during … Towards Quantum Degeneracy of Bosonic and Fermionic Potassium Atoms …

Determining the Determinant

September 1, 2000
Author(s)
Isabel M. Beichl, F Sullivan
… you could combine this with the method in a previous Computing Prescription 1 on the Chinese Remainder theorem. … algorithm that is useful for exact computation. Computing a larger determinant exactly also arises in computing the Pfaffian, which is a matrix operation whose …

Toward a Computational Theory of Mind

December 29, 2006
Author(s)
James S. Albus
… of intelligent systems have developed to a point where a computational theory of mind is feasible.  This paper briefly …  The formal structure of RCS provides a framework for a computational theory of mind that is both quantitative and … Toward a Computational Theory of Mind …

Single photon frequency up-conversion and its applications

October 12, 2012
Author(s)
Lijun Ma, Oliver T. Slattery, Xiao Tang
… research projects including the implementation of a quantum key distribution system; the demonstration of a … (SPDC); the characterization of single photons from quantum dots including the measurement of carrier lifetime … high accuracy and the demonstration of the converted quantum dot photons preserving their non-classical features; …

High-efficiency photon-number resolving detectors based on hafnium transition-edge sensors

September 1, 2009
Author(s)
Adriana E. Lita, Brice R. Calkins, Lenson Pellouchoud, Aaron J. Miller, Sae Woo Nam
… states of light is at the foundation of numerous quantum optics experiments and optical quantum information processing implementations. One such non-Gaussian optical quantum state can be obtained by photon subtraction from a … transition edge sensor, Photon number resolving detector, Quantum optics …

Computerized Fire Simulations For Use In Fatal Fire Investigations

February 1, 2003
Author(s)
Daniel M. Madrzykowski
Learning Objective: To develop a conceptual understanding of fire modeling, model capabilities and the application of fire models to investigations.In conjunction with the National Institute for Occupational Safety and Health (NIOSH), the National

Orbital-Exchange and Fractional Quantum Number Excitations in an f-electron Metal Yb 2 Pt 2 Pb

June 3, 2016
Author(s)
L. S. Wu, W. J. Gannon, I. A. Zaliznyak, A. M. Tsvelik, M. Brockmann, J.-S. Caux, M. S. Kim, Yiming Qiu, John R. Copley, G. Ehlers, A. Podlesnyak, M. C. Aronson
… Exotic quantum states and fractionalized magnetic excitations, such … carrying fractional spin-1/2. These spinons are the quantum dynamics of the anisotropic, orbital-dominated Yb moments, and thus these effective quantum spins are emergent variables that encode the …

Trainspotters Log Major Delays

October 16, 2008
Author(s)
Eric A. Cornell
… information may have technological relevance in the quantum information business. … electromagnetically-induced transparency, quantum optics, slow light …
Displaying 1701 - 1725 of 9850
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