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Displaying 251 - 275 of 3085

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 …

A New Low Temperature Chemical Vapor Deposition Technique For Growing Thin Films of Ti, TiN on Copper and TiO2, TixSiy on Silicon

December 1, 1999
Author(s)
Jay H. Hendricks, M I. Aquino-Class, Michael R. Zachariah
… benign byproducts. This new method fordepositing Ti, TiN, TiO 2 , and Ti x Si y thin films has been demonstrated … a thin film on a substrate placed in the reaction zone. TiN and TiO 2 films were produced by the introduction of N 2 … Using this reaction chemistry, we have produced Ti and TiN thin films on Cu substrates at 610 C (considerably lower …

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 …

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 …

Picoliter Drop Deposition of SnO2 Nanoparticles onto Microsensor Platforms

December 14, 2023
Author(s)
Elvin Beach, Kurt D. Benkstein, Krenar Shqau, Christopher Montgomery, Patricia Morris, Stephen Semancik
… precise drop placement and reproducible film formation. Tin oxide nanoparticles, a well-established sensing material … crystalline materials with an average diameter of 5.5 nm. Tin oxide nanoparticle-laden suspensions were then formulated … sensing, inkjet, microhotplate, microsensor, nanoparticle, tin oxide …

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 …

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 …

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 …

Report on the Static Analysis Tool Exposition (SATE) IV

February 4, 2013
Author(s)
Vadim Okun, Aurelien M. Delaitre, Paul E. Black
… conducted the fourth Static Analysis Tool Exposition (SATE IV) to advance research in static analysis tools that find … The results and experiences were reported at the SATE IV Workshop in McLean, VA, in March, 2012. The tool reports … Report on the Static Analysis Tool Exposition (SATE) IV …

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 …

Solid State Gas Microsensors for Environmental and Industrial Monitoring

January 1, 1999
Author(s)
R M. Walton, Richard E. Cavicchi, Stephen Semancik, B Panchapakesan, Don L. DeVoe, M I. Aquino-Class, J D. Allen, John S. Suehle
… to better meet the needs of a particular application. Tin oxide was used as the base sensing material for microhotplates used in these studies. Tin oxide is grown selectively on each individual element … monitoring, gas microsensor, micromachined silicon, tin oxide, volatile organics …

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. …
Displaying 251 - 275 of 3085
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