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Alexander Kramida, A N. Ryabtsev, J O. Ekberg, I Kink, S Mannervik, I Martinson
Using beam-foil spectroscopy, we have observed several new lines in the B IV and B V spectra. This experimental work was combined with theoretical calculations...
The gravity group at JILA is constructing a three-stage active isolation system to demonstrate useful reduction of low-frequency seismic noise for a...
We have made accurate measurements near 157 nm of the relative index of refraction, its dispersion, and its temperature dependence for two grades of calcium...
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...
John L. Hall, Jun Ye, L -. Ma, K R. Vogel, Tim P. Dinneen
A number of individual small advances, taken together, bring us to the beginning of a new domain of optical frequency stability, reproducibility, and...
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...
Kaushik Mitra, Carl J. Williams, Carlos Sa de Melo
Atomic or molecular bosons in harmonically confined optical lattices are found to exhibit a wedding cake structure consisting of insulating (Mott) and...
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...