Results 101 to 110 of about 22,113 (299)
Non-orthogonal bases for quantum metrology
Journal of Physics A: Mathematical and Theoretical, 2019 Abstract Many quantum statistical models are most conveniently formulated in terms of non-orthogonal bases. This is the case, for example, when mixtures and superpositions of coherent states are involved. In these instances, we show that the analytical evaluation of the quantum Fisher information matrix may be greatly simplified by ...
Marco G Genoni, Tommaso Tufarelli
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Advanced Engineering Materials, EarlyView.Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan +5 more
wiley +1 more source
Eigenvalue systems for integer orthogonal bases of multi-matrix invariants at finite N
Journal of High Energy PhysicsMulti-matrix invariants, and in particular the scalar multi-trace operators of N $$ \mathcal{N} $$ = 4 SYM with U(N) gauge symmetry, can be described using permutation centraliser algebras (PCA), which are generalisations of the symmetric group algebras ...
Adrian Padellaro +2 more
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Advanced Engineering Materials, EarlyView.Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich +3 more
wiley +1 more source
Orthogonality is superiority in piecewise-polynomial signal segmentation and denoising
EURASIP Journal on Advances in Signal Processing, 2019 Segmentation and denoising of signals often rely on the polynomial model which assumes that every segment is a polynomial of a certain degree and that the segments are modeled independently of each other.
Michaela Novosadová +2 more
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Multimodal Data‐Driven Microstructure Characterization
Advanced Engineering Materials, EarlyView.A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang +4 more
wiley +1 more source
Designing local orthogonal bases for evaluating image quality [PDF]
, 1996 We extend to more general groups a well-known relation used for checking the orthogonality of a system as well as for orthogonalizing a nonorthogonal one. This, in turn is used for designing local orthogonal bases obtained by modulations and rotations of
Bernardini Riccardo, Kovacevic Jelena
core
Semi-orthogonal wavelet packet bases for parallel least-squares approximation [PDF]
, 1996 A generalization to the wavelet packet case of the semi-orthogonal wavelets given by C.K. Chui is presented and a simple numerical algorithm for their practical evaluation is developed. To provide a motivation, it is shown how, using these new bases, the
Montefusco, Laura B. +1 more
core +1 more source
Feynman integral reductions by intersection theory with orthogonal bases and closed formulae
Journal of High Energy PhysicsWe present a prescription for choosing orthogonal bases of differential n-forms belonging to quadratic twisted period integrals, with respect to the intersection number inner product. To evaluate these inner products, we additionally propose a new closed
Giulio Crisanti, Sid Smith
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Complete condition for nonzero quantum correlation in continuous variable systems
New Journal of Physics, 2015 Quantum correlation provides a promising measure beyond entanglement. Here, we propose a necessary and sufficient condition for nonzero quantum correlation in continuous variable systems, which is simple and easy to perform in terms of a marker Q _r . In
Chengjie Zhang +5 more
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