Results 21 to 30 of about 1,721,079 (299)

A Race-Track Trapped-Ion Quantum Processor

Physical Review X, 2023
We describe and benchmark a new quantum charge-coupled device (QCCD) trapped-ion quantum computer based on a linear trap with periodic boundary conditions, which resembles a race track.
S. A. Moses, C. H. Baldwin, M. S. Allman, R. Ancona, L. Ascarrunz, C. Barnes, J. Bartolotta, B. Bjork, P. Blanchard, M. Bohn, J. G. Bohnet, N. C. Brown, N. Q. Burdick, W. C. Burton, S. L. Campbell, J. P. Campora, III, C. Carron, J. Chambers, J. W. Chan, Y. H. Chen, A. Chernoguzov, E. Chertkov, J. Colina, J. P. Curtis, R. Daniel, M. DeCross, D. Deen, C. Delaney, J. M. Dreiling, C. T. Ertsgaard, J. Esposito, B. Estey, M. Fabrikant, C. Figgatt, C. Foltz, M. Foss-Feig, D. Francois, J. P. Gaebler, T. M. Gatterman, C. N. Gilbreth, J. Giles, E. Glynn, A. Hall, A. M. Hankin, A. Hansen, D. Hayes, B. Higashi, I. M. Hoffman, B. Horning, J. J. Hout, R. Jacobs, J. Johansen, L. Jones, J. Karcz, T. Klein, P. Lauria, P. Lee, D. Liefer, S. T. Lu, D. Lucchetti, C. Lytle, A. Malm, M. Matheny, B. Mathewson, K. Mayer, D. B. Miller, M. Mills, B. Neyenhuis, L. Nugent, S. Olson, J. Parks, G. N. Price, Z. Price, M. Pugh, A. Ransford, A. P. Reed, C. Roman, M. Rowe, C. Ryan-Anderson, S. Sanders, J. Sedlacek, P. Shevchuk, P. Siegfried, T. Skripka, B. Spaun, R. T. Sprenkle, R. P. Stutz, M. Swallows, R. I. Tobey, A. Tran, T. Tran, E. Vogt, C. Volin, J. Walker, A. M. Zolot, J. M. Pino   +95 more
doaj   +1 more source

Assessing the Role of Longitudinal Variability of Vertical Track Stiffness in the Long-Term Deterioration [PDF]

, 2016
The performance of the railway system in terms of dynamic loading is depending mainly on the track support conditions. Usually, the track stiffness is used as the main parameter to describe the support conditions and is defined as the ratio of the load ...
Grossoni, I., Andrade, A. R., Ramos Andrade, Antonio, Grossoni, Ilaria, Bezin, Y., Bezin, Yann   +5 more
core   +3 more sources

The swarm Langmuir probe ion drift, density and effective mass (SLIDEM) product

Earth, Planets and Space, 2022
Key points A new data product for Swarm along-track ion drift velocity, density and effective mass has been derived The addition of faceplate current to ion admittance enables a refinement to Swarm ion density The estimations have been validated against ...
I. P. Pakhotin, J. K. Burchill, M. Förster, L. Lomidze   +3 more
doaj   +1 more source

The Interaction Between Railway Vehicle Dynamics And Track Lateral Alignment [PDF]

This thesis examines the effect of vehicle dynamics on lateral deterioration of the track alignment. As rail traffic runs along a route, the forces imposed upon the track cause the ballast to settle, and hence the track geometry deteriorates.
Gong, Cencen
core   +3 more sources

Biosensor Cell-Fit-HD4D for correlation of single-cell fate and microscale energy deposition in complex ion beams

STAR Protocols, 2022
Summary: We present a protocol for the biosensor Cell-Fit-HD4D. It enables long-term monitoring and correlation of single-cell fate with subcellular-deposited energy of ionizing radiation.
Julian Schlegel, Hans Liew, Katrin Rein, Oleh Dzyubachyk, Jürgen Debus, Amir Abdollahi, Martin Niklas   +6 more
doaj   +1 more source

Molecular dynamics simulations of the response of pre-damaged SrTiO3 and KTaO3 to fast heavy ions

AIP Advances, 2020
We investigate the energy dissipation and track formation due to ion irradiation in SrTiO3 and KTaO3. We use molecular dynamics simulations combined with the inelastic thermal spike model to simulate 21 MeV Ni ion irradiation in pristine and predamaged ...
Eva Zarkadoula, Yanwen Zhang, William J. Weber   +2 more
doaj   +1 more source

The interaction between railway vehicle dynamics and track lateral alignment [PDF]

, 2016
Track geometry deteriorates with traffic flow, thus it needs to be regularly restored using tamping or other method. As the deterioration is mainly in the vertical direction this aspect has been widely studied and models for its analysis developed ...
Gong, Cencen, Iwnicki, Simon, Bezin, Yann   +2 more
core   +1 more source

An investigation of sleeper voids using a flexible track model integrated with railway multi-body dynamics [PDF]

, 2009
This article describes a flexible track system model (FTSM) that represents the track structure for a typical ballasted track, taking into account the flexibility of the rails, the sleeper mass and the resilience of the pad/fastening elements, as well as
Iwnicki, Simon D., Shahzad, F., Evans, G., de Vries, E., Iwnicki, S., Cavalletti, M., Bezin, Yann   +6 more
core   +1 more source

Simultaneous characterization of cross- and in-plane thermal transport in insulator patterned by directionally aligned nano-channels

AIP Advances, 2020
Anisotropic thermal transport behavior was investigated in a single crystal sapphire patterned by vertically aligned few-nanometer diameter and several micrometer long cylindrical ion tracks.
Vinay S. Chauhan, Azat Abdullaev, Zhandos Utegulov, Jacques O’Connell, Vladimir Skuratov, Marat Khafizov   +5 more
doaj   +1 more source

CR-39 track detector for multi-MeV ion spectroscopy

Scientific Reports, 2017
We present the characteristics of track formation on the front and rear surfaces of CR-39 produced by laser-driven protons and carbon ions. A methodological approach, based on bulk etch length, is proposed to uniquely characterize the particle tracks in ...
T. W. Jeong, P. K. Singh, C. Scullion, H. Ahmed, P. Hadjisolomou, C. Jeon, H. Yun, K. F. Kakolee, M. Borghesi, S. Ter-Avetisyan   +9 more
doaj   +1 more source