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Displaying records 641 to 650 of 763 records.
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641. Suppression of excess noise in transition-edge sensors using magnetic field and geometry
Topic: Physics
Published: 12/17/2003
Authors: Joel Nathan Ullom, William Bertrand Doriese, Gene C Hilton, James A Beall, Steven Deiker, Kent D Irwin, Carl D Reintsema, Leila R Vale, Yizi Xu
Abstract: We report recent progress at NIST on Mo/Cu Transition-Edge Sensors (TESs). While the signal- band noise of our sensors agrees with theory, we observe excess high-frequency noise. We describe this noise and demonstrate that it can be heavily suppresse ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=31423

642. Surface-Electrode Architecture for Ion-Trap Quantum Information Processing
Topic: Physics
Published: 9/1/2005
Authors: J Chiaverini, Brad Rodney Blakestad, Joseph Wright Britton, John D. Jost, C. Langer, Dietrich G Leibfried, R Ozeri, David J Wineland
Abstract: We investigate a surface-mounted electrode geometry for miniature linear radio frequency Paul ion traps. The electrodes reside in a single plane on a substrate, and the pseudopotential minimum of the trap is located above the substrate at a distance ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50014

643. Survey of FY 2001 Nanotechnology-Related Research at the National Institute of Standards and Technology.
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6864
Topic: Physics
Published: 1/1/2002
Authors: Chad R Snyder, J P. Looney, M P Casassa
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=853823

644. Symmetry and Fourier analysis of the ab-initio-determined torsional variation of structural and Hessian-related quantities for application to vibration-torsion-rotation interactions in CH3OH
Topic: Physics
Published: 1/11/2010
Authors: Li-Hong Xu, Jon Torger Hougen, Jonathan M. Fisher, Ronald M. Lees
Abstract: The aim of the present paper is to investigate the use of quantum chemistry calculations to obtain the torsional dependence of various structural and vibrational-force-field-related quantities that could help in estimating the vibration-torsion-rotat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903523

645. Sympathetic Electromagnetically-Induced-Transparency Laser Cooling of Motional Modes in an Ion Chain
Topic: Physics
Published: 4/12/2013
Authors: Yiheng Lin, John P Gaebler, Ting Rei Tan, Ryan Steven Bowler, John D. Jost, Dietrich G Leibfried, David J Wineland
Abstract: We use electromagnetically-induced transparency (EIT) laser cooling to cool motional modes of a linear ion chain. As a demonstration, we apply EIT cooling on ^u24^Mg^u+^ ions to cool the axial modes of a ^u9^Be^u+^-^u24^Mg^u+^ ion pair and a ^u9^Be^u ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912751

646. Synchronization between remote sites for the MINOS experiment
Topic: Physics
Published: 11/26/2012
Authors: Stefania Romisch, Steven R Jefferts, Victor Shufang Zhang, Thomas Edward Parker, Neil Ashby, P Adamson, G. Barr, A. Habig, J Meier, C. James, R. Nicol, R. Plunkett, C. Rosenfeld, Russell Bumgarner, M. Christensen, Jonathan Hirschauer, B. Fonville, Demetrios Matsakis, Ed Powers, J. Wright, Angela Mckinley
Abstract: In the context of time-of-flight measurements, the timing at the departure and arrival locations is obviously critical to the outcome of the experiment. In the case of neutrino time-of-flight experiments, the locations are many hundreds of kilometer ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913108

647. Synchronizing Computer Clocks Using Kalman Filters
Topic: Physics
Published: 7/31/2011
Author: Judah Levine
Abstract: I have used the Kalman Filter algorithm to improve the link between the Internet Time Servers operated by the National Institute of Standards and Technology (NIST) and the primary atomic clock ensemble in Boulder, which realizes UTC(NIST) and which i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908527

648. Synchronizing Computer Clocks by the Use of Kalman Filters
Topic: Physics
Published: 11/14/2011
Author: Judah Levine
Abstract: The National Institute of Standards and Technology (NIST) currently operates 35 public network time servers that are located at many different sites in the United States. The servers provide time messages over the public Internet in a number of diffe ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910051

649. Synthesis of ultrastable femtosecond pulse trains from an optical reference oscillator
Topic: Physics
Published: 6/1/2003
Authors: A Bartels, T M Ramond, Scott A Diddams, Leo W. Hollberg
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=105132

650. System-Level Integration of a Chip-Scale Atomic Clock: Microwave Oscillator and Physics Package
Topic: Physics
Published: 11/7/2006
Authors: Alan Brannon, Vladislav Gerginov, Svenja A Knappe, Z Popovic, John E Kitching
Abstract: We report on our progress in developing a prototype Chip-Scale Atomic Clock with the integration of the local oscillator and the physics package. A discussion of the design and results is given with a focus on frequency stability, size, and power con ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50447



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