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Displaying 476 - 500 of 3841

Microwave quantum logic gates for trapped ions

August 11, 2011
Author(s)
Dietrich G. Leibfried, Christian Ospelkaus, Ulrich J. Warring, Yves Colombe, Kenton R. Brown, J. M. Amini, David J. Wineland
… processing, simulation and chemistry. For trapped atomic ions, the quantized motional and internal degrees of freedom … coherently manipulate the internal quantum states of the ions on time scales of 20 ns. We also generate entanglement … microwave control, quantum information processing, trapped ions …

yocto-Newton force detection sensitivity using trapped ions

August 22, 2010
Author(s)
Michael J. Biercuk, Joseph W. Britton, Hermann Uys, Aaron Vandevender, John Bollinger
… small external forces. In a host of formats trapped atomic ions have been proposed as ideal candidates for the detection … as small as 174 yN (yocto = 10 -24 ) using a crystal of 60 ions. Force detection sensitivity using this crystal is … yocto-Newton force detection sensitivity using trapped ions …

VECSEL systems for quantum information processing with trapped beryllium ions

March 10, 2023
Author(s)
Shaun C. Burd, Jussi-Pekka Penttinen, Panyu Hou, Hannah Knaack, Sanna Ranta, Mika Maki, Emmi Kantola, Mircea Guina, Daniel Slichter, Dietrich Leibfried, Andrew C. Wilson
… for quantum information processing with trapped beryllium ions. Each system consists of a compact, single-frequency, … mW of 313 nm light that is used to laser cool trapped 9Be+ ions and quantum state preparation and detection. The 313 nm … for quantum information processing with trapped beryllium ions …

Measurement of Calcium Activity in Oral Fluids by Ion Selective Electrode: Method Evaluation and Simplified Calculation of Ion Activity Products

March 1, 2000
Author(s)
Clifton M. Carey, Gerald L. Vogel
… activity in very small plaque fluid samples is by micro ion-selective electrode (ISE). Two commercially available … made with micro ISEs that contained the neutral ion-carrier of whole plaque samples and plaque fluid samples … simplified calculation method is presented to estimate the ion activity product (IAP) of the calcium-phosphate minerals. …

Molecular Mass Determination of Saturated Hydrocarbons: Reactivity of eta- 5 -Cyclopentadienylcobalt Ion (CpCo. +) and Linear Alkanes up to C-30

January 1, 2003
Author(s)
H M. Byrd, Kathleen M. Flynn, D P. Ridge
… the feasibility of the h 5 -cyclopentadienylcobalt ion (CpCo +) as a suitable cationization reagent for saturated hydrocarbons analysis by mass spectrometry. Ion/molecule reactions of CpCo + and three medium … n-alkanes were examined using Fourier-transform ion cyclotron resonance mass spectrometry. Second-order rate …

Observation of Latent Reliability Degradation in Ultra-Thin Oxides after Heavy-Ion Irradiation

February 18, 2002
Author(s)
John S. Suehle, Bin Wang, J. F. Conley, Eric M. Vogel, Peter Roitman, C E. Weintraub, A. H. Johnston, J B. Bernstein
… irradiation had no affect on oxide lifetime. The heavy ion irradiation substantially reduced oxide life even though … stress conditions was a strong function of the heavy ion fluence. … heavy-ion irradiation, reliability, oxide breakdown, radiation … Reliability Degradation in Ultra-Thin Oxides after Heavy-Ion Irradiation …

Four-Color Matrix Method for Correction of Tristimulus Colorimeters Part 2

November 20, 1998
Author(s)
Yoshihiro Ohno, Steven W. Brown
The Four-Color Method was developed to improve the accuracy of tristimulus colorimeters for measurements of color displays. It was verified that the method works well for CRTs. The accuracy of this method has been studied further for spectral variations of

Magnetocorrosion Of Pipeline Steel

July 1, 2009
Author(s)
Angelique N. Lasseigne
… in corrosion behavior, including pitting, cracking, and hydrogen ingress, were assessed with and without an applied … 2008 International Hydrogen Conference: Effects of Hydrogen on Materials …

Golden aspect ratio for ion transport simulation in nanopores

July 5, 2018
Author(s)
Subin Sahu, Michael P. Zwolak
… i.e., regimes of interest to transport through biological ion channels and nanopores. Outside of linear response, it … Ion transport, nanopores, access resistance, ion channels … Golden aspect ratio for ion transport simulation in nanopores …

Entangled states of trapped atomic ions

June 19, 2008
Author(s)
Rainer Blatt, David J. Wineland
… and quantum information processing that use trapped ions.  It is intended to give a brief summary of the status … quantum control, quantum-state engineering, trapped ions … Entangled states of trapped atomic ions …

Ion Optical Clocks and Quantum Information Processing

May 1, 2003
Author(s)
David J. Wineland, James C. Bergquist, Till P. Rosenband, Piet Schmidt, Wayne M. Itano, John J. Bollinger, Dietrich G. Leibfried, W Oskay
… Ion Optical Clocks and Quantum Information Processing …

Channeling-Induced Asymmetric Distortion of Depth Profiles from Polycrystalline-TiN/Ti/TiN(001) Trilayers During Secondary Ion Mass Spectrometry

May 1, 2000
Author(s)
G Ramanath, J E. Greene, I Petrov, J E. Baker, L H. Allen, J Greg Gillen
… and molecular secondary ions are observed during secondary ion mass spectrometry (SIMS) analyses of polycrystalline-TiN/Ti/TiN(001) trilayers using a Cs+ ion beam. The sputter-etching rate R and the secondary ion yield Y from TiN(002) layers are strongly dependent on …

Thick gate oxide extrinsic breakdown - The potential role of neutral hydrogen atom

October 20, 2022
Author(s)
Kin (Charles) Cheung
… can satisfy this requirement. An exception is the neutral hydrogen atom, and its known properties are consistent with … thick oxide, extrinsic breakdown, atomic hydrogen, trap-assisted-tunneling … oxide extrinsic breakdown - The potential role of neutral hydrogen atom …

Electromagnetically-Induced-Transparency Cooling with a Tripod Structure in a Hyperfine Trapped Ion with Mixed-Species Crystals

August 22, 2024
Author(s)
Jenny Wu, Pan-Yu Hou, Stephen Erickson, Adam Brandt, Yong Wan, Giorgio Zarantonello, Daniel Cole, Andrew C. Wilson, Daniel Slichter, Dietrich Leibfried
… of the technique. However, in applications where the ion used for cooling has hyperfine structure to allow long … extra laser frequency; this method can be applied to any ion with non-zero nuclear spin. Furthermore, we demonstrate … and ^9} Be^+ - ^25} Mg^+ - ^9} Be^+ through the ^25} Mg^+ ion. …

Surface-Electrode Architecture for Ion-Trap Quantum Information Processing

September 1, 2005
Author(s)
J Chiaverini, Brad R. Blakestad, Joseph W. Britton, John D. Jost, C. Langer, Dietrich G. Leibfried, R Ozeri, David J. Wineland
… geometry for miniature linear radio frequency Paul ion traps. The electrodes reside in a single plane on a … principles to the construction of multiplexed ion traps, which may be very desirable for recent proposals … Surface-Electrode Architecture for Ion-Trap Quantum Information Processing …

Measurement of electric-field noise from interchangeable samples with a trapped-ion sensor

November 18, 2021
Author(s)
Kyle McKay, Dustin Hite, Philip D. Kent, Shlomi S. Kotler, Dietrich Leibfried, Daniel Slichter, Andrew C. Wilson, David P. Pappas
… We demonstrate the use of a single trapped ion as a sensor to probe electric-field noise from … and distance dependence of electric-field noise from two ion-trap-like samples with patterned Au electrodes. This trapped-ion sensor could be combined with other surface …

HCI Reduced Barriers in Magnetic Tunnel Junctions

December 7, 2008
Author(s)
Joshua M. Pomeroy, Holger Grube
… conductance of tunnel junctions due to highly charged ion irradiation was shown while demonstrating that tunnelling … 17th International Workshop on Inelastic Ion-Surface Collisions …

BLEVE, or no BLEVE, that is the question - On the superheat limits of solvents commonly used in Li-ion batteries

September 26, 2024
Author(s)
Jiann C. Yang
… superheat limits of five solvents commonly used in Li-ion batteries are calculated using the Peng-Robinson equation … occurrence of BLEVE during a thermal runaway of a Li-ion battery. … BLEVE, equation of state, Li-ion battery, superheat limit, thermodynamics … - On the superheat limits of solvents commonly used in Li-ion batteries …

Measuring the effects of low energy ion milling on the magnetization of Co/Pd multilayers using scanning electron microscopy with polarization analysis

April 30, 2010
Author(s)
Benjamin James McMorran, Aaron C. Cochran, Randy K. Dumas, Kai Liu, Paul Morrow, Daniel T. Pierce, John Unguris
… individual layers, Co(0.4nm)/Pd(0.6nm), on the energy of ion milling is investigated using scanning electron … with polarization analysis (SEMPA). The effect of Ar ion milling on the Co/Pd magnetization angle distribution is compared for ion milling at 50 eV, 1 keV, and 2 keV. We find that 1 keV …

Probing the non-classical dihydrogen ligand in OsClH3(PPh3)3 using X-ray and neutron diffraction, inelastic neutron scattering, and theoretical calculations

February 15, 2022
Author(s)
Carly Carter, Ryan Klein, Wei Zhou, Terrence J. Udovic, Craig Brown, Ting-Bin Wen, Thomas Cundari, Muhammed Yousufuddin
… ligation to metal centers results in a wide range of metal-hydrogen interactions. Compounds containing non-classical … Developing a more complete understanding of the metal-hydrogen and hydrogen-hydrogen interactions in these species may provide … hydrogen storage, molecular polyhydride …

Electron-Impact Ionization Cross Sections for Polyatomic Molecules, Radicals, and Ions

March 1, 2000
Author(s)
Yong Sik Kim, Karl Irikura
… emphasis on polyatomic molecules and their radicals and ions. The BEB model provides an analytic formula for the … keV in incident electron energy for neutral molecules and ions. The BEB cross sections for some fluorine-containing … electron-impact ionization, ions, polyatomic molecules, radicals …
Displaying 476 - 500 of 3841
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