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Search Publications

NIST Authors in Bold

Displaying 1626 - 1650 of 9850

Quantum Mechanics of the Electromagnetic Environment in the Single-Junction Coulomb Blockade

January 1, 1992
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 … Quantum Mechanics of the Electromagnetic Environment in the …

IR Computer Generated Holograms: Design and Application for the WFIRST Grism using Wavelength-Tuning Interferometry

July 14, 2018
Author(s)
Margaret Z. Dominguez, Catherine Marx, Qian Gong, John Hagopian, Ulf Griesmann, James Burge, Dae Wook Kim
… Interferometers using computer generated holograms (CGHs) have become the industry … Aspheric metrology, optical testing, computer generated hologram, infrared, wavelength-tuning, … IR Computer Generated Holograms: Design and Application for the …

Computer Simulation of the Fires in the World Trade Center Towers. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-5F) ***DRAFT for Public Comments***

September 1, 2005
Author(s)
Kevin B. McGrattan, Charles E. Bouldin, Glenn P. Forney
… the pyrolysis of charring fuels, like wood; and the computer program was re-configured to run on multiple … fire safety, fire investigations, terrorists, terrorism, computer simulation, computational fluid dynamics, smoke … Computer Simulation of the Fires in the World Trade Center …

On Computing Elastic Shape Distances between Curves in d-dimensional Space

June 21, 2021
Author(s)
Javier Bernal, James F. Lawrence, Gunay Dogan, Robert Hagwood
… dimension, we present a Dynamic Programming algorithm for computing optimal diffeomorphisms that is linear, and justify … in a purely algebraic manner the usual algorithm for computing optimal rotation matrices, the Kabsch-Umeyama … allows applications of the Fast Fourier Transform for computing successively in an even more efficient manner, …

Computation of Light Scattered Into Detector

January 1, 2000
Author(s)
Egon Marx
… function (BRDF) of a rough surface to the results of a computation, we have to take into account the aperture of the … Computation of Light Scattered Into Detector …

Background and Review of Cavity-Enhanced Spontaneous Parametric Down-Conversion

August 22, 2019
Author(s)
Oliver T. Slattery, Lijun Ma, Kevin Zong, Xiao Tang
… of entangled and correlated single-photon pairs used for quantum communications applications for nearly three decades. … energy transitions in atomic ensembles for implementing quantum memories, which are needed for quantum repeaters to extend the reach of quantum …

Sympathetic Cooling of Trapped Ions for Quantum Logic

January 1, 2000
Author(s)
D Kielpinski, B E. King, C J. Myatt, C A. Sackett, Q A. Turchette, Wayne M. Itano, C Monroe, David J. Wineland
… One limit to the fidelity of quantum logic operations on trapped ions arises from heating … Sympathetic Cooling of Trapped Ions for Quantum Logic …

Physics Laboratory: Activities, Accomplishments & Recognition 2008-2009

March 1, 2010
Author(s)
Jonathan E. Hardis
… ionizing radiation, time and frequency, and fundamental quantum processes. Areas of core competence include … radiation measurements, time and frequency metrology, quantum physics, fundamental constants, and electronic … ionizing radiation, nanotechnology, optical radiation, quantum information, quantum physics, time …

Unraveling spin entanglement using quantum gates with scanning tunneling microscopy-driven electron spin resonance

October 31, 2025
Author(s)
Eric Switzer, Jose Reina Galvez, Geza Giedke, Talat Rahman, Christoph Wolf, Deung-Jang Choi, Nicolas Lorente
… Quantum entanglement is a fundamental resource for quantum information processing, and its controlled generation and detection remain key challenges in scalable quantum architectures. Here, we demonstrate the deterministic … Unraveling spin entanglement using quantum gates with scanning tunneling microscopy-driven …

A technique for in-situ displacement and strain measurement with laboratory-scale X-ray Computed Tomography

May 23, 2024
Author(s)
Orion Kafka, Alexander Landauer, Jake Benzing, Newell Moser, Elisabeth Mansfield, Edward Garboczi
… surface strain measurements during in-situ X-ray micro-computed tomography (XCT) experiments. This enables in-situ … measurement, particle tracking, Laboratory X-ray micro Computed Tomography … and strain measurement with laboratory-scale X-ray Computed Tomography …

Simulating Job Replication Versus its Energy Usage

December 10, 2023
Author(s)
Brian D. Cloteaux, Vladimir Marbukh
… aspects of our lives, the energy and ecological impacts of computing are becoming increasing important. Some of the … for understanding the trade-offs between distributed computing and its carbon impact. We briefly describe our … job replication, green computing …

Optimal Control of a Flexible Robot Arm

June 1, 1988
Author(s)
Jonathan W. Lee, B Wang
The work is a computer simulation of the control of a flexible robot arm. The dynamic equations for a single-link flexible robot arm have been derived rigorously. This arm has two degrees of freedom in rotation and one in translation so that the workspace

Digital Forensics at the National Institute of Standards and Technology

April 1, 2008
Author(s)
James R. Lyle, Douglas R. White, Richard Ayers
There are three digital forensic science projects: National Software Reference Library (NSRL), Computer Forensic Tool Testing (CFTT), Computer Forensic Reference Data Sets (CFReDS) currently providing resources for the digital investigator underway at the

Dynamical quantum correlations of Ising models on an arbitrary lattice and their resilience to decoherence

November 7, 2013
Author(s)
Michael S. Foss-Feig, Kaden R. Hazzard, John J. Bollinger, Ana Maria Rey, Charles W. Clark
… a central role in generating entangled states for use in quantum metrology and quantum information. In particular, ultracold atomic gases, … give rise to highly non-classical dynamics and long-range quantum correlations. In the first part of this paper, we … Dynamical quantum correlations of Ising models on an arbitrary lattice …

Fundamental limits and optimal estimation of the resonance frequency of a linear harmonic oscillator

September 15, 2021
Author(s)
Mingkang Wang, Rui Zhang, Robert Ilic, Yuxiang Liu, Vladimir Aksyuk
… mechanical cantilevers, are subject to thermodynamic and quantum perturbations and detection uncertainty, … continuously measured position. The lower bound combines quantum and thermodynamic fundamental limits with those … frequency measurement from thermodynamically- and quantum-backaction-driven fluctuations alone, without …

Precise Energies of Highly Excited Hydrogen and Deuterium

November 1, 2002
Author(s)
Svetlana A. Kotochigova, Peter J. Mohr, Barry N. Taylor
… transitions between highly excited states with principal quantum number n up to 200. All known quantum electrodynamics and relativistic corrections have … deuterium, energy levels hydrogen, quantum electrodynamics …

Efficient quantum dot single photon extraction into an optical fiber using a nanophotonic directional coupler

September 19, 2011
Author(s)
Marcelo I. Davanco, Matthew T. Rakher, W. Wegscheider, Dieter Schuh, Antonio Badolato, Kartik A. Srinivasan
… for collecting photoluminescence from a single InAs quantum dot directly into a standard single mode optical … with a suspended GaAs nanophotonic waveguide with embedded quantum dots, forming an efficient and broadband directional … a single mode optical fiber was estimated for a single quantum dot transition. …

Computational analysis and experiments of spatter transport in a laser powder bed fusion machine

April 16, 2024
Author(s)
Nicholas O'Brien, Syed Uddin, Jordan Weaver, Jake Jones, Satbir Singh, Jack Beuth
… gas flow rate and salient flow features are studied with a computational fluid dynamics (CFD) model and are validated … Laser powder bed fusion, Spatter particles, Computational fluid dynamics (CFD), Discrete phase model … Computational analysis and experiments of spatter transport …
Displaying 1626 - 1650 of 9850
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