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Search Publications

NIST Authors in Bold

Displaying 1401 - 1425 of 9848

HEMT Amplified SET Measurements of Individual InGaAs Quantum Dots

August 25, 2006
Author(s)
Kevin Osborn, Mark W. Keller, Richard Mirin
… measure single electrons tunnelling into individual InGaAs quantum dots. The SET detects the charge motion as an … electron tunnels from an underlying n-doped layer, into a quantum dot lying in an intermediate layer. A HEMT on the … of the Stark shift in the first electron state in the quantum dot as a function of lateral electric field. …

Using Temperature to Reduce Noise in Quantum Frequency Conversion

April 23, 2018
Author(s)
Paulina S. Kuo, Jason S. Pelc, Carsten Langrock, M. M. Fejer
… Quantum frequency conversion (QFC) is important in quantum networks to interface nodes operating at different wavelengths and to enable long-distance quantum communication using telecommunications wavelengths. … Using Temperature to Reduce Noise in Quantum Frequency Conversion …

Observing the average trajectories of single photons in a two-slit interferometer

June 3, 2011
Author(s)
Sacha Kocsis, Boris Braverman, Sylvain Ravets, Martin Stevens, Richard Mirin, L. Krister Shalm, Aephraim M. Steinberg
… A consequence of the quantum mechanical uncertainty principle is that one may not discuss the path or "trajectory" that a quantum particle takes, because any measurement of position … define a set of trajectories for an ensemble of quantum particles. We sent single photons emitted by a …

Evaluation of the Computer Fire Model DETACT-QS

March 20, 2002
Author(s)
Morgan J. Hurley, Daniel M. Madrzykowski
… may be introduced. The potential for uncertainty in computer models is greater than within basic closed form … based codes, fire safety, case histories, fire models, computer models, evaluation, sensitivity analysis, scenarios, … Evaluation of the Computer Fire Model DETACT-QS …

Spin-Orbit Coupled Molecular Quantum Magnetism Realized in Inorganic Solid

September 21, 2016
Author(s)
Sang-Youn Park, S.-H. Do, K.-Y. Choi, J.-H. Kang, Dongjin Jang, B. Schmidt, Manuel Brando, B.-H. Kim, D.-H. Kim, Nicholas Butch, Seongsu Lee, Sungdae Ji
… state, is of particular interest due to characteristics of quantum magnetism with quantum tunneling phenomena underlying qubits or molecular spintronics for the quantum information devices. Such quantum magnetism has been … Spin-Orbit Coupled Molecular Quantum Magnetism Realized in Inorganic Solid …

Quantum Fluctuations and the Single Junction Coulomb Blockade

January 1, 1990
Author(s)
S Girvin, L Glazman, M Jonson, David R. Penn, Mark D. Stiles
… We investigate the effect of quantum flucuations on the Coulomb blockade in a single … tunnels through the junction. For small Z (relative to the quantum of resistance), a weak power-law sero-bias anomaly … Quantum Fluctuations and the Single Junction Coulomb Blockade …

Graphical Evaluation of Certainty of Smokeless PowderPopulation Association Using Computer-Intensive Statistics

October 16, 2008
Author(s)
William MacCrehan, J D. Secl, David L. Duewer
… Visual display of this comparison using both classical and computer-intensive statistics can be used to determine … boxes. The Monte Carlo Bootstrap (MCB) method of computer-intensive statistics was used to evaluate the two … classical statistics, computer-intensive statistics, forensic science, graphical …

Quantum-based vacuum metrology at NIST

June 20, 2018
Author(s)
Julia K. Scherschligt, James A. Fedchak, Zeeshan Ahmed, Daniel S. Barker, Kevin O. Douglass, Stephen P. Eckel, Edward T. Hanson, Jay H. Hendricks, Thomas P. Purdy, Jacob E. Ricker, Robinjeet Singh
… Work is ongoing to recast the pascal in terms of quantum properties and fundamental constants and in so doing, … vacuum metrology consistent with the global trend toward quantum-based metrology. NIST has ongoing projects that … Quantum-based vacuum metrology at NIST …

An Efficient Large Eddy Simulation Algorithm for Computational Wind Engineering: Application to Surface Pressure Computations on a Single Building.

August 1, 1999
Author(s)
Ronald G. Rehm, Kevin B. McGrattan, Howard R. Baum, Emil Simiu
… Two incoming mean wind profiles are considered in these computations, one uniform with height and the other … building, a cubical building and a flat building. These computational results are compared with wind tunnel measurements and computations performed by other investigators. The agreement …

Quantum back-action limits in dispersively measured Bose-Einstein condensates

April 8, 2023
Author(s)
Ian Spielman, Emine Altuntas
… A fundamental tenet of quantum mechanics is that measurements change a system's … Here, we theoretically and experimentally characterize quantum back-action in atomic Bose-Einstein condensates … laser beam. We theoretically describe this process using a quantum trajectories approach where the environment measures …

Terahertz Electromagnetically Induced Transparency in Cesium Atoms

September 14, 2020
Author(s)
Sumit Bhushan, Oliver T. Slattery, Xiao Tang, Lijun Ma
… when experimentally realized, has a potential to make Quantum Communication possible with THz signals. … Electromagnetically Induced Transparency, Quantum Memory, Quantum Communication …

Functionalization-Dependent Induction of Cellular Survival Pathways by CdSe Quantum Dots in Primary Normal Human Bronchial Epithelial Cells

September 5, 2013
Author(s)
Amber Nagy, Jennifer A. Hollingsworth, Bin Hu, Andrea Steinbruck, Peter C. Stark, Cristina Rios Valdez, Momchilo Vuyisich, Michael H. Stewart, Donald H. Atha, Bryant C. Nelson, Rashi Iyer
… Quantum dots (QDs) are semiconductor nanocrystals exhibiting … Genotoxicity, Nanomaterials, Quantum Dots, Cytotoxicity, Comet Assay … Induction of Cellular Survival Pathways by CdSe Quantum Dots in Primary Normal Human Bronchial Epithelial …

Microwave measurement beyond the quantum limit with a nonreciprocal amplifier

April 2, 2020
Author(s)
Florent Lecocq, Leonardo Ranzani, Gabriel A. Peterson, Katarina Cicak, Anja Metelmann, Shlomi S. Kotler, Raymond Simmonds, John Teufel, Jose Aumentado
… The measurement of a quantum system is often performed by encoding its state in a … by loss or excess noise on the way to the detector. Even a quantum-limited detector that simultaneously measures a … extract a measurement efficiency of 62% that exceeds the quantum limit and that is not limited by fundamental factors. …

Entangled states of trapped atomic ions

June 19, 2008
Author(s)
Rainer Blatt, David J. Wineland
… This article reviews recent experiments on entanglement and quantum information processing that use trapped ions.  It is … atom trapping and cooling, entanglement, quantum information processing, quantum control, quantum-state engineering, trapped ions …

Provably efficient machine learning for quantum many-body problems

September 23, 2022
Author(s)
Hsin-Yuan Huang, Richard Kueng, Giacomo Torlai, Victor Albert, John Preskill
… a potentially powerful approach to solving challenging quantum many-body problems that arise in physics and … ML algorithm, after learning from data obtained in quantum experiments, can accurately predict expectation … ML algorithms can efficiently classify a wide range of quantum phases of matter. Our arguments rely heavily on the …
Displaying 1401 - 1425 of 9848
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