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Topic Area: Physics
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Displaying records 531 to 540 of 774 records.
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531. A single-ion optical clock with high accuracy
Topic: Physics
Published: 7/14/2006
Authors: W Oskay, Scott A Diddams, Elizabeth A Donley, Tara Michele Fortier, Thomas Patrick Heavner, Leo W. Hollberg, Wayne M Itano, Steven R Jefferts, M J. Jensen, Kyoungsik Kim, F Levi, Thomas Edward Parker, James C Bergquist
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841942

532. Heating Rates and Enhanced Equilibration Rates with Strongly Correlated Ions in a Penning-Malmberg Trap
Topic: Physics
Published: 6/25/2006
Authors: John J Bollinger, Marie J Jensen, T Hasegawa, D HE Dubin
Abstract: We laser cool up to 10^u6^ ^u9^Be^u+^ ions to ~ 1 mK in a Penning-Malmberg trap and measure the ion temperature as a function of time after turning off the cooling laser. We observe a rapid heating of the ions when the their temperature in a directio ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50410

533. A Local Oscillator for Chip-Scale Atomic Clocks at NIST
Topic: Physics
Published: 6/5/2006
Authors: Alan Brannon, J Breitbarth, Z Popovic, Vladislav Gerginov, V Shah, Svenja A Knappe, Leo W. Hollberg, John E Kitching
Abstract: We report the first local oscillator (LO) demonstrating viability in terms of performance, size, and power, for chip-scale atomic clocks (CSAC) at the National Institute of Standards and Technology in Boulder, CO. This volgate-controlled oscillator ( ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50388

534. Relativity and Timing in X-ray Pulsar Navigation
Topic: Physics
Published: 6/5/2006
Authors: Neil Ashby, David Allan Howe
Abstract: XNAV is a technology demonstration that will use photons from X-ray pulsars for navigation and spacecraft attitude determination. This paper summarizes relativistic effects in the context of XNAV. It also characterizes the primary task in the time do ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50396

535. Government Jobs for Physicists: Believe It or Not Challenging and Satisfying!
Topic: Physics
Published: 5/30/2006
Author: David G Seiler
Abstract: This presentation details the benefits of government positions for physicists based on the experiences of a NIST Division Chief.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32273

536. Optical and microwave frequency synthesis with an integrated fiber frequency comb
Topic: Physics
Published: 5/21/2006
Authors: L Hartl, Martin E. Fermann, W Swann, John J. McFerran, Ian R Coddington, Qudsia Quraishi, Scott A Diddams, Nathan Reynolds Newbury, Carston Langrock, M M Fejer, P. S. Westbrook, Jeffrey W. Nicholson, K Feder
Abstract: We demonstrate optical coherence over a broad spectral range of two independent fiber frequency combs. Additionally, we demonstrate microwave stability of better than 2x10^u-14^ in 1 second for an optically integrated fiber frequency comb.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50363

537. High resolution analysis of the 26 and 2 9 9 bands of propane
Topic: Physics
Published: 5/8/2006
Authors: Jean-Marie Flaud, Walter Joseph Lafferty, F. Kwabia Tchana
Abstract: Using high-resolution Fourier transform spectra of propane recorded in the 13.4 μm (resolution of 0.002 cm-1) and in the 27.4 μm (resolution 0.0011 cm-1) spectral regions, it was possible to perform a thorough assignment of both the ν ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903598

538. Recent experiments in trapped-ion quantum information processing at NIST
Topic: Physics
Published: 5/1/2006
Authors: J Chiaverini, Matthew P. Barrett, Brad Rodney Blakestad, Joseph Wright Britton, Wayne M Itano, John D. Jost, Emanuel H Knill, C. Langer, Dietrich G Leibfried, R Ozeri, T Schaetz, David J Wineland
Abstract: Atomic ions confined in segmented trap arrays provide a system for quantum information processing. We report on the execution of two simple quantum algorithms, quantum error correction and the quantum Fourier transform, using this implementation. The ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841893

539. Recent experiments in trapped-ion quantum information processing at NIST
Topic: Physics
Published: 5/1/2006
Authors: J Chiaverini, Murray D Barrett, Brad Rodney Blakestad, Joseph Wright Britton, Wayne M Itano, John D. Jost, Emanuel H Knill, C. Langer, Dietrich G Leibfried, R Ozeri, Tobias Schaetz, David J Wineland
Abstract: Atomic ions confined in segmented trap arrays provide a system for quantum information processing. We report on the execution of two simple quantum algorithms, quantum error correction and the quantum Fourier transform, using this implementation. The ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50146

540. Optimization of Transition-Edge Calorimeter Performance
Topic: Physics
Published: 4/15/2006
Authors: Joel Nathan Ullom, James A Beall, William Bertrand Doriese, William Duncan, S. Lisa Ferreira, Gene C Hilton, Kent D Irwin, Galen C O'Neil, Carl D Reintsema, Leila R Vale, Barry L. Zink
Abstract: Calorimeters that exploit the superconducting-to-normal transition are used to detect individual photons from near-infrared to γ-ray wavelengths. Across this wide range, absorption efficiency, speed, and energy resolution are key performance par ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32064



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