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Displaying 11626 - 11650 of 17277

Johnson Noise Thermometry Using a Quantum Voltage Noise Source for Calibration

June 1, 2004
Author(s)
Sae Woo Nam, Samuel P. Benz, Paul D. Dresselhaus, Weston L. Tew, D. R. White, John M. Martinis
We describe our progress towards a high-precision measurement of temperature using Johnson noise. Using a Quantized Voltage Noise Source (QVNS) based on the Josephson effect as a calibrated noise source, we have been able to measure the gallium and water

Ion Optical Clocks and Quantum Information Processing

May 1, 2003
Author(s)
David J. Wineland, James C. Bergquist, Till P. Rosenband, Piet Schmidt, Wayne M. Itano, John J. Bollinger, Dietrich G. Leibfried, W Oskay
We summarize experiments at NIST that (1) use guantum gates to entabgle ions and thereby improve the measurement signal-to-noise ratio in spectroscopy and (2) implement sympathetic cooling and quantum state transfer techniques, which might be used to

On the Use of Wireless Network Technologies in Healthcare Environments

June 1, 2005
Author(s)
Nicolas Chevrollier, Nada T. Golmie
In this article, we investigate the suitability of wireless technologies in healthcare/hospital environments. We focus on Wireless Personal Area Network technologies, namely, Bluetooth and the low-rate specifications described in the IEEE 802.15.4 standard

Summary of Comparison of Realizations of the ITS-90 Over the Range 83.8058 K to 933.473 K: CCT Key Comparison CCT-K3

April 1, 2002
Author(s)
Billy W. Mangum, Gregory F. Strouse, William F. Guthrie, R Pello, M F. Stock, E Renaot, Y Hermier, G Bonnier, P Marcarino, K S. Gam, K H. Kang, Y G. Kim, J V. Nicholas, D. R. White, T D. Dransfield, Y Duan, Y Qu, J Connolly, R L. Rusby, J Gray, G J. Sutton, D I. Head, K D. Hill, A G. Steele, K Nara, Tony J. Tegeler, U Noatsch, D Heyer, B Fellmuth, B Thiele-Krivoj, S Duris, A I. Pokhodun, N P. Moiseeva, A G. Ivanova, P A. de Groot, J F. Dubbeldam
… uncertainties of those differences are given for the 15 standards laboratories participating in the comparison. …

Quality Control in Automated Manufacturing

January 1, 1986
Author(s)
Ted Hopp, Dennis A. Swyt, T Carlton
… of recent work by several groups at the National Bureau of Standards as they relate to quality control in automated …

Simulation of a Modular Hierarchical Feedback System

July 1, 1982
Author(s)
Howard Bloom, Charles R. McLean, Cita M. Furlani, T J. Johnson, S Milligan, T Fortman
… modeled after certain aspects of the National Bureau of Standards Automated Manufacturing Research Facility (AMRF). …

Observations on COMET

November 16, 2020
Author(s)
Daniel J. Bernstein, Henri Gilbert, Meltem Sonmez Turan
This note provides two observations on COMET, a second round candidate of the NIST lightweight cryptography standardization process. The first observation uses a long message to detect the use of weak keys, whereas the second observation focuses on the

High-contrast dark resonances with linearly polarized light on the D 1 line of alkali atoms with large nuclear spin

February 20, 2009
Author(s)
Ken-ichi Watabe, Takeshi Ikegami, Akifumi Takamizawa, Shinya Yanagimachi, Shin-ichi Ohshima, Svenja A. Knappe
High-contrast coherent population trapping signal was observed on the Cs-D1 line using a bichromatic linear polarized light (lin||lin) field. The maximum absorption contrast of about 10% was obtained was nearly two times higher than that measured with the
Displaying 11626 - 11650 of 17277
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