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C A. Regal, M Greiner, M Giorgini, M J. Holland, D S. Jin
We observe dramatic changes in the atomic momentum distribution of a Fermo gas in the region of the BCS-BEC crossover. We study the shape of the momentum
We derive an exact propagation scheme for nonlinear Schr\o}dinger equations. This scheme is entirely analogous to the propagation of linear Schr\o}dinger
E W. Bell, X Q. Guo, J L. Forand, K Rinn, D R. Swenson, J S. Thompson, G H. Dunn, M E. Bannister, D C. Gregory, Ray A. Phaneuf, A C. Smith, A Muller, C A. Timmer, E K. Wahlin, B D. DePaola, D S. Belic
A merged-beams electron-energy-loss technique is described by which absolute cross sections can be measured for near-threshold electro-impact excitation of
Frequency dependent response characteristics of photocurrent meters using large area, radiometric quality Si photodiodes have been analyzed. The current
A method for calibrating indicating instruments that exploits the combinatorial properties of a set of different-valued, and mostly uncalibrated, artefacts is
A pedagogical overview of intramolecular vibrational redistribution (IVR) phenomena in vibrationally excited molecules is presented. In the interest of focus
Calculations and measurements of particle growth in silane RF capacitively coupled discharges are reported. The measurements of particle diameters of 8 nm to 50
Two-loop Bethe logarithms are calculated for excited P and D states in hydrogenlike systems, and estimates are presented for all states with higher angular
D B. Romero, V B. Podobedov, A Weber, J.F. Mitchell, Y Moritomo, H D. Drew
Charge and spin dynamics in La 2-2xSr 1+2xMn 2O 7 (x=0.4,0.5) are probed by magneto-Raman spectroscopy. A competition between charge-order, antiferromagnetic
A remarkable synergy between traditionally CW laser-based precision optical frequency metrology and mode-locked ultrafast lasers has led to precision control of
We measured the spectrum of cesium emitted by a pulsed radio-frequency discharge in the region 1550 to 40 000 using concave grating spectrographs, Fabry-Perot
Ultracold molecules have been made by applying a time-dependent magnetic field to a dilute quantum gas of ultracold trapped fermionic atoms. This raises the
Jonathan Baker, R C. Forrey, M Jeziorska, J D. Morgan
We have computed the Bethe logarithms for the 1 1S, 21S, and 23S states of helium to about seven figures using the method developed by Charles Schwartz and
Steven T. Cundiff, B C. Collins, N N. Akhmediev, J M. Soto-Crespo, K Bergman, W H. Knox
Solitons are the subject of substantial research because of potential applications in high-speed fiber-optics communications. However, discussions of soliton
Rui-Hua Xie, Garnett W. Bryant, J Zhao, T Kar, V H. Smith
Using time-dependent density functional theory, we show that the first singlet excitations of a series of icosahedral, dodecahedral and tetrahedral clusters are
We present calculation of the 4d-4f energy separation in Li I using two advanced teqhniques in atomic structure theory, namely, relativistic all-order method
John L. Hall, Jun Ye, L -. Ma, J L. Peng, M Notcutt, J D. Jost, A Marian
This is a report on behalf of the World Tema of Stable Laser and Optical Frequency Measurement Enthusiasts, even if most detailed illustrations draw mainly from
By pursuing the deep relation between the one-dimensional Dirac equation and quantum walks, the physical role of quantum interference in the latter is explained
The measurements of most neutron cross sections are made relative to neutron cross section standards. The last complete evaluation ofthe standards, which was
An extensive characterization of high-finesse optical cavities used in cavity QED experiments is described. Different techniques in the measurement of the loss
Maynard S. Dewey, Ernest G. Kessler Jr., R Deslattes, H G. Borner, M Jentschel, C Doll, P Mutti
The binding energies of 29Si, 33S, and 36Cl have been measured with a relative uncertainty 0.65 x 10 -6 using a flat-crystal spectrometer. The unique features
As it embarks on its second 100 years, the National Institute of Standards and Technology is developing new approaches to realizing and disseminating the SI
Jules Zeiser Klose, 77, an atomic physicist at the National Bureau of Standards (NBS) and the National Institute of Standards and Technology (NIST), died Sunday
The relative standard uncertainty (computed relative standard deviation of the mean) is shown to be intrinsically normalized when the averaged values all have
Quantum walks have deep connections to quantum search algorithms, quantum cellular automata, quantum chaotic maps, and quantum state transfer. One of the
We consider screening of the core-hole potential experienced by the ejected electron in core-excitation processes. This potential affects near-edge structure
Wavelengths of seven spectral lines of Fe I, Ge I and Pt I between 1932 and 1938 have been measured with uncertainties of less than 1x10 -4 (5 parts in 10 8)
Sergey Mekhontsev, Mart Noorma, A Prokhorov, Leonard Hanssen
We summarize recent progress in our infrared (IR) spectral radiance metrology effort. In support of customer blackbody characterization, a realization of the