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Topic Area: Physics
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Displaying records 61 to 70 of 705 records.
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61. Absolute transition frequencies and quantum interference in a frequency comb based measurement of the 6,7Li D lines
Topic: Physics
Published: 7/6/2011
Authors: Craig J Sansonetti, Clayton Simien, John D Gillaspy, Joseph N Tan, Samuel Middleton Brewer, Roger Charles Brown, Saijun Wu, James V Porto
Abstract: Optical frequencies of the D lines of 6,7Li were measured with a relative accuracy of 5x10-11 using an optical comb synthesizer. Quantum interference in the laser induced fluorescence for the partially-resolved D2 lines was found to produce polariz ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908094

62. Absolute-frequency measurements with a stabilized near-infrared optical frequency comb from a Cr:forsterite laser
Topic: Physics
Published: 2/15/2004
Authors: K L Corwin, I Thomann, A Bartels, T Dennis, Richard W Fox, W C Swann, E A Curtis, Christopher W Oates, G Wilpers, S L Gilbert, Leo W. Hollberg, Nathan Reynolds Newbury, Scott A Diddams, J Nicholson, M. F. Yan
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104876

63. Accurate CO^d2^ Laser Frequencies and Molecular Constants for Regular and New Hot Band Lines
Topic: Physics
Published: 6/27/1994
Authors: Che-Chung Chou, Jow-Tsong Shy, A. G. Maki, L R Zink, K M. Evenson
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=105168

64. Accurate control of Josephson phase qubits
Topic: Physics
Published: 12/30/2003
Authors: Matthias Steffen, John M. Martinis, Isaac C. Chuang
Abstract: A quantum bit is a closed two-dimensional Hilbert space, but often experimental systems have three or more energy levels. In a Josephson phase qubit the energy differences between successive levels differ by only a few percent, and hence care must be ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=31378

65. Accurate light-time correction due to a gravitating mass
Topic: Physics
Published: 6/7/2010
Authors: Neil Ashby, Bruno Bertotti
Abstract: This technical paper of mathematical physics arose as an aftermath of the 2002 Cassini experiment, in which the PPN parameter {gamma} was measured with an accuracy {sigma}^d{gamma}^ {math equal} 2.3 {multiply} 10^u-5^ and found consistent with the re ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905436

66. Advances in Atomic Structure Calculations
Topic: Physics
Published: Date unknown
Author: Charlotte Fischer
Abstract: Correlation and relativistic effects are both needed for accurate atomic structure calculations of energy levels and their atomic properties. For transition probabilities between low-lying levels of a spectrum, accurate wave functions for the outer r ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840847

67. Advances in Coherent Population Trapping for Atomic Clocks
Topic: Physics
Published: 8/10/2010
Authors: John E Kitching, Vishal Shah
Abstract: We review advances in the field of coherent population trapping (CPT) over the last decade with respect to the application of this physical phenomenon to atomic frequency references. We provide an overview of both the basic phenomenon of coherent pop ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904870

68. Aging of Spectral Lamps in Space
Topic: Physics
Published: 1/1/2005
Authors: F Kerber, D Lindler, P Bristow, D Lembke, Gillian Nave, Joseph Reader, Craig J Sansonetti, S Heap, Michael R Rosa, H J Wood
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=102758

69. Albedo Measurements and Optical Sizing of Single Aerosol Particles
Topic: Physics
Published: 7/31/2008
Authors: Todd J. Sanford, Daniel Murphy, David S Thomson, Richard W Fox
Abstract: Aerosols play an important role in global climate change by their interactions with incoming solar radiation and outgoing longwave radiation from the planetary surface. The climate effects of aerosols depend on their scattering and absorption prope ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842431

70. Alpha-Dot or Not: Comparison of Two Single Atom Optical Clocks
Topic: Physics
Published: 10/5/2008
Authors: Till P Rosenband, David Hume, Chin W. Chou, J.C. Koelemeij, A. Brusch, Sarah Bickman, Windell Oskay, Tara Michele Fortier, Jason Stalnaker, Scott A Diddams, Nathan Reynolds Newbury, William C Swann, Wayne M Itano, David J Wineland, James C Bergquist
Abstract: Repeated measurements of the frequency ratio of Hg^u+^ and Al^u+^ single-atom optical clocks over the course of a year yield a constraint on the possible temporal variation of the fine-structure constant a. The time variation of the measured ratio c ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901534



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