Results 51 to 60 of about 3,567,879 (381)

Large-amplitude driving of a superconducting artificial atom: Interferometry, cooling, and amplitude spectroscopy [PDF]

open access: yes, 2009
Superconducting persistent-current qubits are quantum-coherent artificial atoms with multiple, tunable energy levels. In the presence of large-amplitude harmonic excitation, the qubit state can be driven through one or more of the constituent energy ...
A. Fragner   +96 more
core   +2 more sources

Split-spectrum amplitude-decorrelation angiography with optical coherence tomography

open access: yesOptics Express, 2012
Amplitude decorrelation measurement is sensitive to transverse flow and immune to phase noise in comparison to Doppler and other phase-based approaches. However, the high axial resolution of OCT makes it very sensitive to the pulsatile bulk motion noise ...
Yali Jia   +10 more
semanticscholar   +1 more source

The advancement of the methods of vibro-acoustic control of the ICE gas distribution mechanism [PDF]

open access: yesFME Transactions, 2020
A modern vehicle is a system of high-precision systems. In particular, over the past 20 years, the gas distribution mechanism (GRM) has been structurally released from any adjustments.
Gritsenko A.   +4 more
doaj  

Factorization of Mellin amplitudes [PDF]

open access: yesJournal of High Energy Physics, 2015
We introduce Mellin amplitudes for correlation functions of $k$ scalar operators and one operator with spin in conformal field theories (CFT) in general dimension. We show that Mellin amplitudes for scalar operators have simple poles with residues that factorize in terms of lower point Mellin amplitudes, similarly to what happens for scattering ...
Gonçalves, Vasco   +2 more
openaire   +3 more sources

On unitarity of the Coon amplitude

open access: yesJournal of High Energy Physics, 2023
Abstract The Coon amplitude is a one-parameter deformation of the Veneziano amplitude. We explore the unitarity of the Coon amplitude through its partial wave expansion using tools from q-calculus. Our analysis establishes manifest positivity on the leading and sub-leading Regge trajectories in arbitrary spacetime dimensions D ...
Bhardwaj, Rishabh   +3 more
openaire   +3 more sources

Finite-amplitude inhomogeneous plane waves of exponential type in incompressible elastic materials [PDF]

open access: yes, 2012
It is proved that elliptically-polarized finite-amplitude inhomogeneous plane waves may not propagate in an isotropic elastic material subject to the constraint of incompressibility.
Destrade, Michel
core   +2 more sources

Using Dual Regression to Investigate Network Shape and Amplitude in Functional Connectivity Analyses

open access: yesFrontiers in Neuroscience, 2017
Independent Component Analysis (ICA) is one of the most popular techniques for the analysis of resting state FMRI data because it has several advantageous properties when compared with other techniques.
L. Nickerson   +3 more
semanticscholar   +1 more source

Bootstrapping a Five-Loop Amplitude Using Steinmann Relations. [PDF]

open access: yesPhysical Review Letters, 2016
The analytic structure of scattering amplitudes is restricted by Steinmann relations, which enforce the vanishing of certain discontinuities of discontinuities.
S. Caron-Huot   +3 more
semanticscholar   +1 more source

Model selection for amplitude analysis [PDF]

open access: yes, 2015
Model complexity in amplitude analyses is often a priori under-constrained since the underlying theory permits a large number of possible amplitudes to contribute to most physical processes.
Guegan, Baptiste   +3 more
core   +2 more sources

Sparse Phase Retrieval via Truncated Amplitude Flow [PDF]

open access: yesIEEE Transactions on Signal Processing, 2016
This paper develops a novel algorithm, termed SPARse Truncated Amplitude flow (SPARTA), to reconstruct a sparse signal from a small number of magnitude-only measurements.
G. Wang   +4 more
semanticscholar   +1 more source

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