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Displaying 21801 - 21825 of 73829

Direct Imaging of Topological Edges States with Cold Atoms

March 7, 2013
Author(s)
Ian B. Spielman, Nathan Goldman, Jean Dalibard, Alexandre Dauphin, Maciej Lewenstein, Fabrice Gerbier, Peter Zoller
Detecting manifestation of topological order in cold-atom experiments is an outstanding challenge, the resolution of which offers novel perspectives on topological phases of matter. In material systems, unambiguous signatures of topological states have

Energy levels and spectral lines of singly ionized manganese (Mn II)

March 7, 2013
Author(s)
Alexander Kramida, Jean E. Sansonetti
This compilation revises the previously recommended list of energy levels of singly ionized manganese (Mn II) and provides a comprehensive list of observed spectral lines and transition probabilities in this spectrum. The new level optimization takes into

Light polarization and quantum interference effects in unresolvable atomic lines: application to a precise measurement of the 6,7Li D2 lines.

March 7, 2013
Author(s)
Roger C. Brown, Saijun Wu, James V. Porto, Craig J. Sansonetti, Clayton Simien, Samuel M. Brewer, Joseph N. Tan, John D. Gillaspy
We characterize the effect of quantum interference of light scattering on the line shapes and measured line positions in atomic spectra. These effects occur when the excited state splittings are of order the excited state line widths, and represent an

Shifts of optical frequency references based on spectral hole burning in Eu3+:Y2SiO5

March 6, 2013
Author(s)
David R. Leibrandt, Michael J. Thorpe, Till P. Rosenband
Spectral hole burning laser frequency stabilization in Eu3+:Y2SiO5 is performed in a cryogenic environment with high temperature stability and low levels of vibration. Several properties of Eu3+:Y2SiO5 spectral holes are measured, including magnetic field

Soliton dynamics of an atomic spinor condensate on a Ring Lattice

March 6, 2013
Author(s)
Indubala I. Satija, Carlos L. Pando L., Eite Tiesinga
We study the dynamics of macroscopically-coherent matter waves of an ultra-cold atomic spin-1 or spinor condensate on a ring lattice of six sites and demonstrate a novel type of spatio-temporal internal Josephson effect. Using a discrete solitary mode of

Simple Estimates of Combined StairWell / Elevator Egress in Buildings

March 5, 2013
Author(s)
Paul A. Reneke, Richard D. Peacock, Bryan L. Hoskins
This report is part of this effort to develop requirements for the use of elevators in tall building evacuations. It describes a simple tool to estimate combined stairwell / elevator egress time from buildings. It is based on methods developed in the

Two-port microwave calibration at milliKelvin temperatures

March 5, 2013
Author(s)
Leonardo M. Ranzani, Lafe F. Spietz, Zoya Popovic, Jose A. Aumentado
In this work we introduce a system for 2-port microwave calibration at millikelvin temperatures operating at the coldest stage of a dilution refrigerator by use of an adapted thru-reflect-line algorithm. We show that this can be an effective tool for

1932 A watershed year in nuclear physics

March 4, 2013
Author(s)
Joseph Reader, Charles W. Clark
1932 was the year for an amazing series of discoveries in physics. This started with the announcement of the discovery of deuterium, followed by the discoveries of the neutron and the positron, as well as artificial disintegration of nuclei by accelerators

A Hybrid CPU-GPU Approach to Fourier-Based Image Stitching of Optical Microscopy Images

March 3, 2013
Author(s)
Walid Keyrouz, Timothy J. Blattner, Bertrand C. Stivalet, Joe Chalfoun, Mary C. Brady, Shujia Zhou
We present a hybrid CPU-GPU approach for the Fourier-based stitching of optical microscopy images. This system achieves sub-minute stitching rates with large grids; it stitches a grid of 59x42 tiles in 26 seconds on a two-CPU (8 physical cores) & two-GPU

Adhesion Society Meeting Proceedings

March 3, 2013
Author(s)
Rebecca Ploeger, Aaron Forster, Donald Hunston, Etienne de la Rie, Christopher McGlinchey
Consolidating adhesives have been used throughout the centuries for the conservation of painted cultural objects- such as paintings and polychrome sculpture- and if it were not for these adhesives, many objects may not have survived to the present day

Critical thermal-conductivity enhancement in molecular fluids

March 2, 2013
Author(s)
Richard A. Perkins, Jan V. Sengers, Ilmutdin M. Abdulagatov, Marcia L. Huber
The available information for the thermal-conductivity enhancement is reviewed. We show that it can be represented by a simplified solution of the mode-coupling theory of critical dynamics with two critical amplitudes and one cutoff wave number as fluid
Displaying 21801 - 21825 of 73829
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