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NIST Authors in Bold

Displaying 101 - 125 of 4632

Multi-element logic gates for trapped-ion qubits

December 17, 2015
Author(s)
Ting Rei Tan, John P. Gaebler, Yiheng Lin, Yong Wan, Ryan S. Bowler, Dietrich G. Leibfried, David J. Wineland
… the quantum level is of general importance in physics. For trapped-ions, a hybrid system formed of different species … An entangling geometric phase gate between a 9 Be + ion and a 25 Mg + ion employing state-dependent forces is realized through a … information processing, Quantum simulation, Spectroscopy, Trapped ions …

Fast Ground State to Ground State Separation of Small Ion Crystals

October 10, 2024
Author(s)
Tyler Gugliemo, Dietrich Leibfried, Stephen Libby, Daniel Slichter
… into different subsets is critical for realizing trapped ion quantum computing architectures where ions are rearranged … suitable for separation of a mixed-species three-ion crystal on timescales similar to that of free expansion … trapped ions, quantum information, ion separation, mixed species …

Recent experiments in trapped-ion quantum information processing at NIST

May 1, 2006
Author(s)
J Chiaverini, Murray D. Barrett, Brad R. Blakestad, Joseph W. Britton, Wayne M. Itano, John D. Jost, Emanuel H. Knill, C. Langer, Dietrich G. Leibfried, R Ozeri, Tobias Schaetz, David J. Wineland
… quantum information processing, quantum superpositions, trapped ions … Recent experiments in trapped-ion quantum information processing at NIST …

Recent experiments in trapped-ion quantum information processing at NIST

May 1, 2006
Author(s)
J Chiaverini, Matthew P. Barrett, Brad R. Blakestad, Joseph W. Britton, Wayne M. Itano, John D. Jost, Emanuel H. Knill, C. Langer, Dietrich G. Leibfried, R Ozeri, T Schaetz, David J. Wineland
… quantum information processing, quantum superpositions, trapped ions … Recent experiments in trapped-ion quantum information processing at NIST …

Trapped-Ion Quantum Logic Gates Based on Oscillating Magnetic Fields

August 29, 2008
Author(s)
Christian Ospelkaus, Christopher Langer, Jason Amini, Kenton R. Brown, Dietrich G. Leibfried, David J. Wineland
… rotations and entangling multi-qubit quantum gates for trapped-ion quantum information processing (QIP). With fields … initialization compared to current QIP experiments with trapped ions and will eliminate spontaneous scattering, a … Trapped-Ion Quantum Logic Gates Based on Oscillating Magnetic …

Quantum spin dynamics and entanglement generation with hundreds of trapped ions

June 15, 2016
Author(s)
Justin G. Bohnet, Brian C. Sawyer, Joseph W. Britton, Michael L. Wall, A M. Rey, Michael S. Foss-Feig, John J. Bollinger
… entanglement and decoherence in open quantum systems. Trapped ions are an established platform for quantum … spin dynamics and entanglement generation with hundreds of trapped ions …

Stability of a Penning trap with a quadrupole rotating electric field

February 11, 2005
Author(s)
T Hasegawa, M J. Jensen, John Bollinger
… of the center-of-mass (COM) stability of ions in a Penning trap with a quadrupole rotating electric field. The rotation frequency of an ion cloud in a Penning trap determines the cloud density and shape, and it can be … of ions. However, the quadrupole field can modify the trap stability because of the spatial dependence of the …

Laser Cooled Atoms as a Focused Ion Beam Source

December 21, 2006
Author(s)
James L. Hanssen, Jabez J. McClelland, E Dakin, M Jacka
… We describe a method for creating a high quality focused ion beam with enhanced capabilities using an ion source based on laser-cooled neutral atoms in a … and trapped, and will allow unprecedented control over the ion emission, allowing, for example, the production of single …

Significantly Improved Trapping Lifetime of Nanoparticles in an Optical Trap using Feedback Control

April 10, 2012
Author(s)
Arvind Balijepalli, Thomas W. LeBrun, Jason J. Gorman
… We demonstrate an increase in trapping lifetime for optically trapped nanoparticles by more … for 100, nm gold particles and 350 nm silica particles. Trapping lifetimes have been substantially improved with … (with beam power reduced by one third during controlled trapping). The approach described here can be combined with …

Emission-Line Intensity Ratios in FeXVII Observed with a Microcalorimeter on an Electron Beam Ion Trap

December 1, 2000
Author(s)
J M. Laming, I Kink, E Takacs, James V. Porto, John D. Gillaspy, E Silver, H. Schnopper, Simon R. Bandler, N Brickhouse, S Murray, M Barbera, A K. Bhatia, G. A. Doschek, N. Madden, D Landis, J. Beeman, E. E. Haller
… Institute of Standards and Technology electron beam ion trap (EBIT) with a microcalorimeter detector. . . .Both … atoms, electron beam ion trap, emission-line intensity ratios, intensity ratios, … Observed with a Microcalorimeter on an Electron Beam Ion Trap …

Electrical Manipulation of Gold Nanoparticles for Microfluidic Applications

October 16, 2008
Author(s)
Darwin R. Reyes-Hernandez, Geraldine I. Mijares, Kimberly A. Briggman, Jon C. Geist, Michael Gaitan
… An electrical method to trap and release gold nanoparticles to and from the surface of alkanethiol-modified gold electrodes is presented. When a positive bias versus a Ag/AgCl reference electrode was applied to gold electrodes, negatively-charged gold nanoparticles (GNPs) …

Versatile laser-free trapped-ion entangling gates

March 28, 2019
Author(s)
R. T. Sutherland, Raghavendra Srinivas, Shaun C. Burd, Dietrich Leibfried, Andrew C. Wilson, David J. Wineland, David T. Allcock, Daniel Slichter, S. B. Libby
… a general theory for laser-free entangling gates with trapped-ion hyperfine qubits, using either static or oscillating … microwaves, quantum information, spin-spin coupling, trapped ions … Versatile laser-free trapped-ion entangling gates …

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
… atoms can be captured at low energy in a compact Penning trap, allowing the isolation of a single charge state to … atoms are extracted from an electron beam ion trap (EBIT) and guided into the ion capture apparatus. Upon … P 1/2 state of F-like Ar 9+ isolated in a compact Penning trap …

Individual Ion Addressing with Microwave Field Gradients

April 26, 2013
Author(s)
Ulrich J. Warring, C. Ospelkaus, Yves Colombe, Robert Jordens, Dietrich G. Leibfried, David J. Wineland
… ion cooling, ion trapping, mechanical effects of light on ions, quantum … Individual Ion Addressing with Microwave Field Gradients …

Scalable arrays of doped silicon RF Paul traps

October 26, 2009
Author(s)
Joseph W. Britton, Dietrich G. Leibfried, James A. Beall, Brad R. Blakestad, Janus H. Wesenberg, David J. Wineland
… for the fabrication of multi-zone linear RF Paul traps which exploit the machinability and electrical … Scalable arrays of doped silicon RF Paul traps …

Trapped-Ion State Detection through Coherent Motion

December 9, 2011
Author(s)
Till P. Rosenband, David Hume, Chin-Wen Chou, David R. Leibrandt, Michael J. Thorpe, David J. Wineland
… Coherent control of trapped atomic ions has led to several recent advances in … is the ability to detect the state of an individual ion. Current detection techniques 3–6 are applicable only to … coherent motion that can be applied to a larger class of ion systems. We couple a “spectroscopy” ion to a “control” …

Hybrid quantum systems with trapped charged particles

February 21, 2017
Author(s)
Shlomi S. Kotler, Raymond Simmonds, Dietrich Leibfried, David J. Wineland
… Trapped charged particles have been at the forefront of … of much higher fidelity. In a hybrid system involving trapped charges, quantum degrees of freedom of macroscopic … circuits, or nanomechanical membranes, couple to the trapped charges and ideally inherit the coherent properties …

Testing Three-body Quantum Electrodynamics with Trapped Ti-20 Ions: Evidence for a Z-Dependent Divergence between Experiment and Calculation

October 10, 2012
Author(s)
Lawrence T. Hudson, C T. Chantler, Mark N. Kinnane, John D. Gillaspy, A.T. Payne, L F. Smale, Albert Henins, Joseph N. Tan, J A. Kimpton, E Takacs, K Makonyi, Joshua M. Pomeroy
… for all reported w-line transitions in two- electron ions for Z > 15 are considered, a general divergence becomes … quantum electrodynamics, highly-charged ions, helium-like titanium, electron beam ion trap, … Testing Three-body Quantum Electrodynamics with Trapped Ti-20 Ions: Evidence for a Z-Dependent Divergence …

Laser-free trapped-ion entangling gates with simultaneous insensitivity to qubit and motional decoherence

April 29, 2020
Author(s)
R. T. Sutherland, Raghavendra Srinivas, Shaun C. Burd, Hannah Knaack, Andrew C. Wilson, David J. Wineland, Dietrich Leibfried, David T. Allcock, Daniel Slichter, S. B. Libby
… sources for state-of-the-art implementations of laser-free trapped-ion entangling gates are decoherence of the qubit state and … microwaves, quantum information, spin-spin coupling, trapped ions … Laser-free trapped-ion entangling gates with simultaneous insensitivity …
Displaying 101 - 125 of 4632
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