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NIST Authors in Bold

Displaying 776 - 800 of 3841

Trapped-Ion Quantum Simulator,

January 1, 1998
Author(s)
David J. Wineland, C Monroe, Wayne M. Itano, B E. King, Dietrich G. Leibfried, C J. Myatt, Chris S. Wood
… quantized motional and internal states of a single trapped ion can be used to simulate the dynamics of other systems. We … Trapped-Ion Quantum Simulator, …

Hydrogen Distribution in Nb/Ta Superlattices

May 31, 2012
Author(s)
Max Wolff, Gunnar K. Palsson, Panagiotis T. Korelis, Joseph Dura, Charles Majkrzak, Bjorgvin Hjorvarsson
… Hydrogen, superlattice, Nb, Ta, Curie -Weiss, strain … Hydrogen Distribution in Nb/Ta Superlattices …

The effect of reusing wipes for particle collection

November 4, 2015
Author(s)
Jessica L. Staymates, Matthew E. Staymates, Jeffrey A. Lawrence
… collection and instrument response as it relates to ion mobility spectrometry-based trace chemical detectors. Two … dramatically with increased number of swiping cycles. Ion mobility spectrometry was used to evaluate the chemical … International Journal for Ion Mobility Spectrometry …

VECSEL systems for generation and manipulation of trapped magnesium ions

November 8, 2016
Author(s)
Shaun C. Burd, David T. Allcock, Tomi Leinonen, Jussi-Pekka Penttinen, Daniel H. Slichter, Raghavendra Srinivas, Andrew C. Wilson, Robert Jordens, Micrea Guina, Dietrich G. Leibfried, David J. Wineland
… information processing experiments with trapped magnesium ions. For photoionization of neutral magnesium, 570.6 nm … for generation and manipulation of trapped magnesium ions …

Quantum Logic with a Few Trapped Ions

January 1, 1998
Author(s)
C Monroe, Wayne M. Itano, D Kielpinski, B E. King, Dietrich Leibfried, C J. Myatt, Q A. Turchette, David J. Wineland, Chris S. Wood
… Small laser-cooled crystals of atomic ions have attracted considerable interest in the last several … paper considers quantum logic schemes for small numbers of ions in the context of recent experiments at NIST. … Quantum Logic with a Few Trapped Ions …

Multiply-ionized Atoms Isolated at low energy in a Unitary Penning Trap

January 9, 2015
Author(s)
Joseph Tan, Shannon Hoogerheide, Samuel Brewer, Nicholas D. Guise
… cm3) by a unitary architecture. Measurements after 1 ms of ion storage indicate that the captured ions are distributed … roughly 2 orders of magnitude lower than expected in the ion source, without implementing any cooling. Some … Atomic Physics, Ion Trapping, Atomic Spectroscopy …

Lifetime of the metastable 2 P 1/2 state of F-like Ar 9+ isolated in a compact Penning trap

September 6, 2018
Author(s)
Samuel M. Brewer, Joan M. Dreiling, Nicholas D. Guise, Shannon M. Hoogerheide, Aung Naing, Joseph N. Tan
… Highly-ionized atoms are extracted from an electron beam ion trap (EBIT) and guided into the ion capture apparatus. Upon capturing the Ar 9+ ions, light … ion trapping, lifetimes, oscillator strengths, positive-ion beams, transition moments …

Quasi-elastic Neutron Scattering Measurement of Hydrogen Diffusion in a Graphene Oxide Framework

April 16, 2020
Author(s)
Matthew J. Connolly, Z. N. Buck, Carlos Wexler, Joseph C. Schaeperkoetter, H. Taub, Andrew Gillespie, Helmut Kaiser
… neutron scattering (QENS) spectra from molecular hydrogen adsorbed in GOF. The measurements probed the motion of adsorbed hydrogen as a function of pressure, in order to understand … Quasi-elastic Neutron Scattering Measurement of Hydrogen Diffusion in a Graphene Oxide Framework …

Ion transport across solid-state ion channels perturbed by directed strain

April 28, 2020
Author(s)
Alexander Smolyanitsky, Alta Y. Fang, Andrei Kazakov, Eugene Paulechka
… and molecular dynamics simulations to consider aqueous ion flow across non-axisymmetric nanopores in monolayer … relationship in solid-state and biological ion channels. Specifically, the observed anisotropic effects … Ion transport across solid-state ion channels perturbed by …

Ion transport and reordering in a two-dimensional trap array

May 19, 2020
Author(s)
Yong Wan, Robert Jordens, Stephen Erickson, Jenny Wu, Ryan S. Bowler, Ting R. Tan, Panyu Hou, Andrew C. Wilson, Dietrich Leibfried
… (2D) segmented linear Paul trap to reconfigure a two-ion crystal. The secular motion of the ions experiences low … in a large-scale, two- or three-dimensional trapped-ion quantum information processor. … Ion transport and reordering in a two-dimensional trap array …

Impact of Ni-like metastable states and hyperfine quenching on charge state distribution in an EBIT

June 30, 2025
Author(s)
Chowdhury Abrar Faiyaz, Endre Takacs, Timothy Burke, FNU Dipti, Galen O'Neil, Adam Hosier, Hunter Staiger, Joseph Tan, Yuri Ralchenko
… and spectral features of ions in electron beam ion trap (EBIT) devices. Ladder ionization with intermediate … Nd ions, we show that these processes significantly alter ion populations and spectra, emphasizing the importance of … Plasma diagnostics - charged-particle spectroscopy, Ion sources (positive ions, negative ions, electron cyclotron …

Detecting ion pairing in sodium halide solutions with dielectric spectroscopy

July 1, 2025
Author(s)
Michael Woodcox, Sarah Evans, Rebecca Bone, Spencer Mattes, Avik Mahata, Aaron Hagerstrom, Chris Muzny, Ravishankar Sundararaman, Kathleen Schwarz, Angela Stelson
… in the dielectric spectra, the contributions of the ion-ion and ion-water interactions can be difficult to measure and … Detecting ion pairing in sodium halide solutions with dielectric …

Using Laser-Cooled Atoms as a Focused Ion Beam Source

December 1, 2006
Author(s)
James L. Hanssen, E Dakin, Jabez J. McClelland, M Jacka
… describe a new method for creating a high quality focused ion beam using laser-cooled neutral atoms in a magneto-optical trap as an ion source. They show that this new technique can provide … that are better than the state of the art in focused ion beams. The source can be used with a range of different …

Enhancing molecular flux through nanopores via attractive interactions

November 1, 2006
Author(s)
John J. Kasianowicz, Tam Nguyen, Vincent M. Stanford
… has a low dielectric constant (' ~ 2), it was shown that ion-selective transporters, now known as protein ion channels, are water-filled pores (5). The ability to … the means to probe the structure-function relationship of ion channels. Channels, and channel-like entities also …

Fully Quantum Cross Second Virial Coefficients for the Three-Dimensional He-H2 Pair

September 21, 2014
Author(s)
Giovanni Garberoglio, Konrad Patkowski, Allan H. Harvey
… virial coefficient B12(T) between helium and molecular hydrogen. The path-integral method used in this work fully accounts for both the flexibility of the hydrogen molecule and for quantum effects. The effect of … helium, hydrogen, quantum effects, thermodynamics, virial coefficients …

Coupled quantized mechanical oscillators

March 10, 2011
Author(s)
Kenton R. Brown, Christian Ospelkaus, Yves Colombe, Andrew C. Wilson, Dietrich G. Leibfried, David J. Wineland
… between two motional modes of an individual trapped ion has been achieved by coupling through optical fields [6], … into hybrid quantum systems, such as coupling a trapped ion to a quantized macroscopic mechanical or electrical … interaction, coupled oscillators, harmonic oscillator, ion trap, mechanical oscillator, quantum oscillator, trapped …

Non-solvating, side-chain polymer electrolytes as lithium single-ion conductors: synthesis and ion transport characterization

October 3, 2019
Author(s)
Jiacheng Liu, Phillip D. Pickett, Bumjun Park, Sunil Upadhyay, Sara Orski, Jennifer Schaefer
… Solid-state single-ion conducting polyelectrolytes have drawn considerable … interest for secondary lithium batteries due to their high ion conductivities under solvent-free conditions. … materials; however, their potential is limited due to the ion transport mechanism being coupled to segmental …

Voids and Clusters in Expanded Water

January 1, 1999
Author(s)
Raymond D. Mountain
… used to examine the size distributions of suitably defined hydrogen bonded clusters, physical clusters, and voids. The cluster structure of both hydrogen bonded clusters and physical clusters changes … cluster, hydrogen bond cluster, molecular dynamics, size distribution, …
Displaying 776 - 800 of 3841
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