Results 11 to 20 of about 730 (153)
New formulation of discrete Wigner-Ville distribution
A new formulation of the discrete Wigner-Ville distribution is presented which can be implemented directly using standard fast Fourier transform techniques. For a non-negative frequency resolution of N points, only an N point FFT is needed.
Neil Bergmann
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Discrete linear canonical Wigner distribution function
Yushi Zheng, Min Wan, John J. Healy
+4 more sources
Discrete Wigner-Ville Distribution with Wide Frequency Observation Range
Tomoya Yamaoka, Tadashi Oshima
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Probability Representation of Quantum States
The review of new formulation of conventional quantum mechanics where the quantum states are identified with probability distributions is presented. The invertible map of density operators and wave functions onto the probability distributions describing ...
Olga V. Man’ko, Vladimir I. Man’ko
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Quantum eigenstates from classical Gibbs distributions
We discuss how the language of wave functions (state vectors) and associated non-commuting Hermitian operators naturally emerges from classical mechanics by applying the inverse Wigner-Weyl transform to the phase space probability distribution and ...
Pieter W. Claeys, Anatoli Polkovnikov
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Time-frequency analysis of impact sound by means of the discrete pseudo-Wigner distribution.
Shunsuke Ishimitsu, Hajime Kitagawa
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Comment on ‘Wigner function for a particle in an infinite lattice’
It is pointed out that in a recent paper (2012 New J. Phys. 14 103009) in which a Wigner function for a particle in an infinite lattice (a system described by an unbounded discrete coordinate and its conjugate angle-like momentum) has been introduced, no
João P S Bizarro
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Decoherence models for discrete-time quantum walks and their application to neutral atom experiments
We discuss decoherence in discrete-time quantum walks in terms of a phenomenological model that distinguishes spin and spatial decoherence. We identify the dominating mechanisms that affect quantum-walk experiments realized with neutral atoms walking in ...
Andrea Alberti +3 more
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The authors evaluated six machine‐learned interatomic potentials for simulating threshold displacement energies and tritium diffusion in LiAlO2 essential for tritium production. Trained on the same density functional theory data and benchmarked against traditional models for accuracy, stability, displacement energies, and cost, Moment Tensor Potential ...
Ankit Roy +8 more
wiley +1 more source
What If Each Voxel Were Measured With a Different Diffusion Protocol?
ABSTRACT Purpose Expansion of diffusion MRI (dMRI) both into the realm of strong gradients and into accessible imaging with portable low‐field devices brings about the challenge of gradient nonlinearities. Spatial variations of the diffusion gradients make diffusion weightings and directions non‐uniform across the field of view, and deform perfect ...
Santiago Coelho +7 more
wiley +1 more source

