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NIST Authors in Bold

Displaying 30151 - 30175 of 73929

Prospects for mixed-isotope Bose-Einstein condensates in rubidium

October 16, 2008
Author(s)
J P. Burke, J L. Bohn, B D. Esry, C H. Greene
We present quantiative calculations of binary collision parameters for mixtures of ultracold gases of 85Rb and 87Rb atoms. The elastic cross section for pure 85Rb collisions is found to be unusually small in the important temperature range T=0.1-1mK for

Purcell and Local-Field Effects in Dielectric Microcavities

October 16, 2008
Author(s)
A Rahmani, Garnett W. Bryant
We present a general, semi-microscopic, self-consistent treatment of spontaneous emission for a two-level atom in a dielectric microcavity with arbitrary shape and size. Lossless and absorbing media are considered. The approach is based on linear-response

Put NIST Technology Services to Work for You

October 16, 2008
Author(s)
J L. Land
Brochure provides guide for business and industry to access National Institute of Standards and Technology (NIST) services available through Technology Services. Brochure provides contact information and websites and directory on inside back cover.

Quantitative Electron Probe Microanalysis of Rough Targets

October 16, 2008
Author(s)
Dale E. Newbury
Rough samples with topography on a scale that is much greater than the micrometer dimensions of the electron interaction volume present an extreme challenge to quantitative electron beam x-ray microanalysis with energy dispersive x-ray spectrometry

Quantized Rotation of Atoms From Photons With Orbital Angular Momentum

October 16, 2008
Author(s)
Mikkel Andersen, Changhyun Ryu, Pierre Clade, Vasant Natarajan, A Vaziri, Kristian Helmerson, William D. Phillips
Light can carry two kinds of angular momentum: Spin angular momentum (SAM) associated with its polarization and orbital angular momentum (OAM) associated with its spatial mode [1, 2]. The coupling of optical SAM to atoms has been known for over a century

Quantum Charge Fluctuations and the Polarizability of the Single Electron Box

October 16, 2008
Author(s)
Konrad Lehnert, B A. Turek, K Bladh, L F. Spietz, D Gunnarsson, P Delsing
We measure the average charge on a single-electron box, with an accuracy of 10 -3 e as a function of an externally applied potential. At this accuracy, we observe that the total capacitance of the box is a function of temperature, of external potential and

Quantum Teleportation Between Nanomechanical Modes

October 16, 2008
Author(s)
Lin Tian, Stephen Carr
We study a quantum teleportation scheme between two nanomechanical modes without local interaction. The nanomechanical modes are linearly coupled to and connected by the continuous variable modes of a superconducting circuit made of transmission line and

Quantum Teleportation with Atomic Qubits

October 16, 2008
Author(s)
J Chiaverini, T Schaetz, Joseph W. Britton, Wayne M. Itano, John D. Jost, Emanuel Knill, C. Langer, Dietrich Leibfried, R Ozeri, David J. Wineland

Radiation Chemistry of Phenols

October 16, 2008
Author(s)
Pedatsur Neta, S Steenken
This chapter summarizes the radiation chemistry of phenols. It includes studies on the radiation chemistry of phenols in aqueous solutions, in organic solvents, in solid matrices, and in the gas phase.

Radioanalytical Emergency Response Exercise

October 16, 2008
Author(s)
Kenneth G. Inn, Iisa Outola, S Nour, Hiromu Kurosaki, L Albin, A Berne
The National Institute of Standards and Technology (NIST Radiochemistry Intercomparison Program) and the Environmental Measurements Laboratory (EML Performance Testing 0904) recently conducted two independent radiological emergency preparedness exercises

Raman Microspectroscopy of Some High Explosives, Revisited

October 16, 2008
Author(s)
E S. Etz, S V. Roberson, J Greg Gillen
Current NIST research is discussed on the characterization by micro-Raman spectroscopy of several high explosives (HES). The RamanSpectra are evaluated relative to the thermal decomposition of the HES to explain the reactions that produce secondary ion

Reactive Intermediates in Combustion

October 16, 2008
Author(s)
John K. Merle, Christopher M. Hadad
This chapter provides an introduction into the chemistry of reactive intermediates that are typically generated by combustion. Several aspects of combustion chemistry are reviewed: (i) low- and high-temperature mechanisms for saturated and unsaturated
Displaying 30151 - 30175 of 73929
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