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Displaying 451 - 475 of 3841

High-fidelity indirect readout of trapped-ion hyperfine qubits

April 21, 2022
Author(s)
Stephen Erickson, Jenny Wu, Panyu Hou, Daniel Cole, Shawn Geller, Alexander Kwiatkowski, Scott Glancy, Emanuel Knill, Daniel Slichter, Andrew C. Wilson, Dietrich Leibfried
… a protocol for high-fidelity indirect readout of trapped ion hyperfine qubits, where the state of a 9Be+ qubit ion is mapped to a 25Mg+ readout ion using laser-driven Raman transitions. By partitioning the … High-fidelity indirect readout of trapped-ion hyperfine qubits …

Electrochemical intercalation of lithium ions into NbSe2 nanosheets

September 21, 2016
Author(s)
Albert Davydov, Anand V. Patel, Louisa Meshi, Emily Hitz, Liangbing Hu
… study. We demonstrate successful intercalation of Li-ions into NbSe2 and confirm this result through X-ray … Electrochemical intercalation of lithium ions into NbSe2 nanosheets …

A stroboscopic approach to trapped-ion quantum information processing with squeezed phonons

October 24, 2019
Author(s)
Wenchao Ge, Brian C. Sawyer, Joseph W. Britton, Kurt Jacobs, Michael Foss-Feig, John Bollinger
… In trapped-ion quantum information processing, interactions between … (qubits) are mediated by collective modes of motion of an ion crystal. While there are many different experimental … for enhancing the interaction strengths in trapped-ion systems via parametric amplification of the ions' motion. …

Quantum Computing With Ions

August 1, 2008
Author(s)
David J. Wineland, C Monroe
… quantum information processing with the use of trapped ions. It is intended to give a simple introduction to the … quantum control, quantum-state engineering, trapped ions … Quantum Computing With Ions …

Numerical Simulations of 3D Ion Crystal Dynamics in a Penning Trap using the Fast Multipole Method

April 8, 2025
Author(s)
John Zaris, Wes Johnson, Athreya Shankar, John Bollinger, Scott Parker
… We simulate the dynamics, including laser cooling, of 3D ion crystals confined in a Penning trap using a newly … between ions, which allows us to efficiently study large ion crystals with thousands of ions. In particular, we show that the simulation time scales directly with ion number, rather than with the square of the ion number. By …

Quantum simulation of the hexagonal Kitaev model with trapped ions

November 25, 2011
Author(s)
Dietrich G. Leibfried, Roman Schmied , Janus H. Wesenberg
… to the dipole-dipole interaction between the trapped ions, and are mediated by motion driven by state-dependent … an optimized surface-electrode geometry for trapping ions in the desired honeycomb lattice of Kitaev's model, … simulation of the hexagonal Kitaev model with trapped ions …

Chemical Ionization of Saturated Hydrocarbons Using Organometallic Ion Chemistry

July 1, 2002
Author(s)
H M. Byrd, Charles M. Guttman, D P. Ridge
… the feasibility of the h5-cyclopentadienylcobalt ion (CpCo +) as a suitable cationization reagent for … hydrocarbons analysis by mass spectrometry.Methods: Ion/molecule reactions of CpCo + and selected linear alkanes … (no. of C atoms 15) were examined using Fourier-transform ion cyclotron resonance mass spectrometry. Second-order rate …

Effectiveness of AlN Encapsulate in Annealing Ion-Implanted SiC

July 1, 1999
Author(s)
E Handy, M V. Rao, K A. Jones, M A. Derenge, P Chi, R D. Vispute, T Venkatesan, N A. Papanicolaou, J Mittereder
… arsenic (As), antimony (Sb), aluminum (Al), and boron (B) ion-implanted 6H-SiC. Atomic force microscopy (AFM) has … for annealing cycles up to 1600 C for 15 min. Secondary ion mass spectrometry measurements indicated that the AlN … AFM, AlN encapsulate, diffusion, ion implantation, silicon carbide, SIMS …

Demonstration of a dressed-state phase gate for trapped ions

June 28, 2013
Author(s)
Ting Rei Tan, John P. Gaebler, Ryan S. Bowler, Yiheng Lin, John D. Jost, Dietrich G. Leibfried, David J. Wineland
… compared to some other entangling gates with trapped ions. We achieve a Bell state fidelity of 0.974(4) and … dynamical decoupling, trapped ions, quantum information processing, quantum entangling gate … Demonstration of a dressed-state phase gate for trapped ions …

Electrolytes that reduce electro-osmotic drag improve fast charging of lithium-ion batteries

May 13, 2025
Author(s)
Chang-Xin Zhao, Zeyi Wang, David Jacobson, Yue Li, Boris Khaykovich, Sean Fayfar, Jacob LaManna, Daniel Hussey, Lei Zheng, Gabriel Veith, Fu Chen, Chunsheng Wang
… greater than 4 C) is essential for high-energy lithium-ion batteries in electric vehicles yet remains challenging … optimization strategies concentrate on shortening lithium-ion transport pathways through electrode structure … electro-osmotic drag improve fast charging of lithium-ion batteries …

Interphase Formation Versus Fluoride-ion Insertion in Tunnel-Structured Transition Metal Antimonites

November 6, 2024
Author(s)
Cherno Jaye, Conan Weiland, Daniel Fischer, Alice R. Giem, Jaime R. Ayala, Sarbajit Banerjee
… are used to model interfacial reactions in fluoride-ion batteries. Topochemical F-ion insertion is evidenced for one-dimensional (1D) … F-ion batteries, energy, 1D tunnels, XRD, SEM, XANES, HAXPES … Interphase Formation Versus Fluoride-ion Insertion in Tunnel-Structured Transition Metal …

Systematic uncertainty due to background-gas collisions in trapped-ion optical clocks

September 30, 2019
Author(s)
Aaron M. Hankin, Ethan Clements, Huang Yao, Samuel M. Brewer, Jwo-Sy Chen, Chin-wen Chou, David Hume, David Leibrandt
… calculating the frequency shift and uncertainty of trapped-ion optical atomic clocks caused by background-gas … rate of collisions that cause reordering of mixed-species ion pairs. … uncertainty due to background-gas collisions in trapped-ion optical clocks …

100-Fold Reduction of Electric-Field Noise in an Ion Trap Cleanded with In Situ Argon-Ion-Beam Bombardment

September 7, 2012
Author(s)
Dustin Hite, Yves Colombe, Andrew C. Wilson, Kenton R. Brown, Ulrich J. Warring, Robert Jordens, John D. Jost, David P. Pappas, Dietrich Leibfried, David J. Wineland, Kyle McKay
… an in situ Ar + - beam cleaning procedure, and measuring ion heating rates before and after cleaning the trap … 100-Fold Reduction of Electric-Field Noise in an Ion Trap Cleanded with In Situ Argon-Ion-Beam Bombardment …

The ASTM Copper Strip Corrosion Test: Application to Propane with Carbonyl Sulfide and Hydrogen Sulfide

January 1, 2003
Author(s)
W C. Andersen, Ilmutdin Abdulagatov, Thomas J. Bruno
… of propane, can hydrolyze in the presence of water to form hydrogen sulfide (H2S) and carbon dioxide (CO2). All … ASTM copper strip corrosion test. While it is known that hydrogen sulfide will cause the failure of the copper strip … carbonyl sulfide, copper strip corrosion test, hydrogen sulfide, liquefied petroleum gas, LPG …

Steady-state spin synchronization through the collective motion of trapped ions

March 22, 2017
Author(s)
Athreya Shankar, John Cooper, Justin G. Bohnet, Murray Holland, John Bollinger
… We design a system with a primary and secondary species of ions that share a common set of normal modes of vibration. In … by sympathetic cooling with the secondary species of ions, to mediate spin synchronization in the primary species of ions. Our numerical study shows that spin-spin correlations …

Chain and Ion Dynamics in Precise Polyethylene Ionomers

October 11, 2019
Author(s)
Christopher L. Soles, Amalie Frischknecht, Benjamin Paren, Robert Middleton, Karen Winey, Jason Koski, Madhu Sudan Tyagi, Jacob Daniel Tarver
… sufficiently fast to observe the early stages of lithium ion motion and ionic aggregate rearrangements. In the … ionomers with isolated ionic aggregates, the Li-ion containing aggregates rearrange by a process of merging … polyelectrolyte, ionomer, ion transport, neutron scattering, energy storage, molecular …

Neutron Scattering Studies of Lithium-Ion Diffusion in Ternary Phosphate Glasses

June 30, 2016
Author(s)
Gavin Hester, Tom Heitmann, Madhu Sudan Tyagi, Munesh Rathore, Anshuman Dalvi, Saibal Mitra
… modification of the structure and to an increase lithium ion (Li + ) conduction. We find that an increase of Li 2 SO 4 … Lithium ion diffusion, neutron scattering … Neutron Scattering Studies of Lithium-Ion Diffusion in Ternary Phosphate Glasses …
Displaying 451 - 475 of 3841
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