Results 41 to 50 of about 304,219 (298)

Long-lived qubit memory using atomic ions

, 2005
We demonstrate experimentally a robust quantum memory using a magnetic-field-independent hyperfine transition in 9Be+ atomic ion qubits at a magnetic field B ~= 0.01194 T. We observe that the single physical qubit memory coherence time is greater than 10
A. Ben-Kish, B. DeMarco, C. Langer, D. Hume, D. Leibfried, D. Wineland, D. J. Wineland, E. Knill, J. Britton, J. Chiaverini, J. Jost, J. Preskill, M. A. Rowe, N. F. Ramsey, P. Schmidt, P. J. Lee, R. Blakestad, R. Ozeri, R. Reichle, T. Rosenband, T. Schaetz, W. Itano   +21 more
core   +1 more source

Grasp-Dependent Modulations in EEG-EMG Coherence Are Observed in Young but Not Older Adults

IEEE Transactions on Neural Systems and Rehabilitation Engineering
EEG-EMG coherence (Corticomuscular coherence – CMC) reveals the functional connection between the cortical activity and muscle activity during voluntary movements. During voluntary movements the cortical and muscle activity are synchronized in the
Balasubramanian Eswari, Sivakumar Balasubramanian, S. K. M. Varadhan   +2 more
doaj   +1 more source

Topographic distribution of the tibial somatosensory evoked potential using coherence

Brazilian Journal of Medical and Biological Research, 2008
The objective of the present study was to determine the adequate cortical regions based on the signal-to-noise ratio (SNR) for somatosensory evoked potential (SEP) recording.
D.B. Melges, A.F.C. Infantosi, A.M.F.L. Miranda de Sá   +2 more
doaj   +1 more source

Pattern Electroretinogram Parameters Are Associated with Optic Nerve Morphology in Preperimetric Glaucoma after Adjusting for Disc Area

Journal of Ophthalmology, 2021
Purpose. We examined the relationships between pattern electroretinogram and optical coherence tomography derived optic nerve head measurements, after controlling for disc area. Methods.
Andrew Tirsi, Vasiliki Gliagias, Julie Moehringer, Derek Orshan, Sofia Tello, Peter Derr, Sung Chul Park, Stephen A Obstbaum, Celso Tello   +8 more
doaj   +1 more source

JPPL: A joint-polarization phase linking algorithm for phase optimization of TSPolInSAR data

International Journal of Applied Earth Observations and Geoinformation, 2022
In the time-series interferometric SAR (TSInSAR) technology, the phase linking (PL) algorithm can exploit all interferometric combinations to reconstruct the equivalent single master (ESM) interferograms for the phase quality improvement.
Peng Shen, Changcheng Wang, Chihao Hu, Jun Hu, Haiqiang Fu, Jianjun Zhu   +5 more
doaj   +1 more source

Extending Quantum Coherence in Diamond

, 2010
We experimentally demonstrate over two orders of magnitude increase in the coherence time of nitrogen vacancy centres in diamond by implementing decoupling techniques.
Cory, D. G., Hodges, J. S., Ryan, C. A.
core   +1 more source

Transform-limited X-ray pulse generation from a high-brightness self-amplified spontaneous-emission free-electron laser [PDF]

, 2012
A method to achieve high-brightness self-amplified spontaneous emission (HB-SASE) in the free-electron laser (FEL) is described. The method uses repeated nonequal electron beam delays to delocalize the collective FEL interaction and break the radiation ...
A. M. Kondratenko, B. W. J. McNeil, D. J. Dunning, J. A. Clarke, J. K. Jones, J. W. Goodman, N. R. Thompson, N. R. Thompson   +7 more
core   +2 more sources

An in-depth view of the microscopic dynamics of Ising spin glasses at fixed temperature

, 2008
Using the dedicated computer Janus, we follow the nonequilibrium dynamics of the Ising spin glass in three dimensions for eleven orders of magnitude.
Belletti, F., Cruz, A., Fernandez, L. A., Gordillo-Guerrero, A., Guidetti, M., Janus Collaboration, Maiorano, A., Mantovani, F., Marinari, E., Martin-Mayor, V., Monforte, J., Navarro, D., Parisi, G., Perez-Gaviro, S., Ruiz-Lorenzo, J. J., Schifano, S. F., Sciretti, D., Sudupe, A. Muñoz, Tarancon, A., Tripiccione, R., Yllanes, D.   +20 more
core   +1 more source

Coherence stabilization of a two-qubit gate by AC fields [PDF]

, 2004
We consider a CNOT gate operation under the influence of quantum bit-flip noise and demonstrate that ac fields can change bit-flip noise into phase noise and thereby improve coherence up to several orders of magnitude while the gate operation time ...
G. M. Palma, Karen M. Fonseca-Romero, Peter Hänggi, Sigmund Kohler   +3 more
core   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source