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Search Publications

NIST Authors in Bold

Displaying 1426 - 1450 of 3643

An improved electronic measurement of the Boltzmann constant by Johnson noise thermometry

July 18, 2017
Author(s)
Jifeng Qu, Samuel Benz, Kevin Coakley, Horst Rogalla, Weston L. Tew, David R. White, Kunli Zhou, Zhenyu Zhou
… cell is compared to the noise power of a quantum- accurate pseudo-random noise waveform of nominally … and foam dielectric were used to connect the thermal and quantum-accurate noise sources to the correlator so as to … fundamental constant, thermometry, quantum standards, SI Units, Boltzmann constant …

Excess Electrons Bound to H2S Trimer and Tetramer Clusters

January 24, 2020
Author(s)
Gaoxiang Liu, Manuel Diaz-Tinoco, Sandra M. Ciborowski, Chalynette Martinez-Martinez, Svetlana Lyspustina, Jay H. Hendricks, Vincent Ortiz, Kit H. Bowen
… imaging anion photoelectron spectroscopy and high-level quantum chemical calculations. The sharp peaks at low … Photoelectron, spectroscopy, quantum, quantum chemical calculations, dipole, dipole-bound, solvated …

Ray-based classification framework for high-dimensional data

February 3, 2020
Author(s)
Justyna Zwolak, Jacob Taylor, Sandesh Kalantre, Thomas McJunkin, Brian Weber
… framework using a synthetic dataset of double and triple quantum dot devices and apply it to the classification … machine learning, quantum dots, high-dimensional data, classification …

A Facility for Nanoscience Research: An Overview

July 1, 2002
Author(s)
Joseph A. Stroscio, E Hudson, Steven R. Blankenship, Robert Celotta, Aaron P. Fein
… of providing new measurement capabilities for the study of quantum and spin electronic systems on the nanometer scale. … FIM, MBE, quantum systems, spin electronic systems, STM …

Ohms Law Low-current Calibration System for Ionization Chambers

August 24, 2020
Author(s)
Dean G. Jarrett, Shamith U. Payagala, Ryan P. Fitzgerald, Denis E. Bergeron, Jeffrey T. Cessna, Charles J. Waduwarage Perera, Neil M. Zimmerman
… calibration currents from 1 pA to 20 nA, traceable to quantum voltage and resistance standards through an 8-1/2 … electrometer, ionization chamber, quantum electrical standards, standard resistor, small …

Mechanical Sensors for Planck-scale Dark Matter Searches via Long-range Forces

February 14, 2025
Author(s)
Jacob Taylor, Juehang Qin, Dorian Amaral, sunil bhave, Erqian Cai, Daniel Carney, Raphael Lang, Shengchao Li, Claire Marvinney, Alberto Marino, Jared Newton, Christopher Tunnell
… would be exceedingly difficult, requiring > 70 dB of quantum noise reduction even with a 1003 sensor array, … Dark matter, optomechanics, quantum sensing …

Quantum Spin Ice Response to a Magnetic Field in the Dipole-Octupole Pyrochlore Ce2Zr2O7

August 28, 2023
Author(s)
E. Smith, J. Dudemaine, B. Placke, R. Schafer, D. Yahne, T. DeLazzer, A. Fitterman, J. Beare, Jonathan N. Gaudet, C.R.C. Buhariwalla, Andrey Podlesnyak, Guangyong Xu, J. Clancy, R. Movshovich, G. Luke, K. Ross, R. Moessner, O. Benton, A. Bianchi, B. Gaulin
… magnet Ce2Zr2O7 has attracted much attention as a quantum spin ice candidate whose novelty derives in part from … transverse exchange interactions produce substantial quantum effects. Our theoretical modeling suggests that the β … Quantum Spin Ice Response to a Magnetic Field in the …

Predicting Unexpected Chemical Reactions by Isopotential Searching

October 1, 1999
Author(s)
Karl K. Irikura, Russell D. Johnson III
… Since reasonably accurate PESs are now available from quantum chemical calculations, a great deal of chemistry can, … chemical reaction, isopotential, pyrolysis, quantum chemistry, reaction mechanism, thermolysis …

High-Stability Single-Ion Clock with 5.5 x 10^-19 Systematic Uncertainty

July 14, 2025
Author(s)
Mason Marshall, Daniel Rodriguez Castillo, Willa Dworschack, Alexander Aeppli, Kyungtae Kim, Dahyeon Lee, William Warfield, Nicholas Nardelli, Tara Fortier, Jun Ye, David Ray Leibrandt, David Hume
… frequency stability of 3.5 x 10^-16/sqrttau/s}, based on quantum logic spectroscopy of a single 27Al+ ion. A co-trapped 25Mg+ ion provides sympathetic cooling and quantum logic readout of the 27Al+ 1S0 -> 3P0 clock … trapped ions, atomic spectroscopy, precision measurement, quantum logic spectroscopy, time and frequency, metrology …

Practical Strategies for QKD Key Production

May 28, 2013
Author(s)
Alan Mink, Anastase Nakassis
… We present the quantum key distribution (QKD) secure key ratio expression in … Quantum key distribution, QKD reconciliation, Entropy, LDPC …

Beyond the spin model approximation for Ramsey spectroscopy

March 26, 2014
Author(s)
A Koller, M Beverland, Alexey Gorshkov, Ana Maria Rey
… broad applications ranging from precision measurements to quantum information and to fundamental probes of many-body … quantum magnetism, Ramsey spectroscopy, optical lattice …

Dual-channel, single-photon upconversion detector near 1300 nm

November 5, 2012
Author(s)
Paulina S. Kuo, Jason S. Pelc, Oliver T. Slattery, Martin M. Fejer, Xiao Tang
… Si APD. Higher clock rates are of interest for improved quantum communication systems. … Quantum detectors, single photon, nonlinear optics, sum …
Displaying 1426 - 1450 of 3643
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