Results 41 to 50 of about 769 (173)
, 2009 A discrete quantum phase space formalism is used to discuss some basic aspects of the spin tunnelling which occurs in Fe8 magnetic clusters by means of Wigner functions as well as Husimi distributions. Those functions were obtained for sharp angle states
Galetti, Diogenes +3 more
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Nanophotonics, Volume 15, Issue 6, 27 March 2026.Plasmon‐emitter interactions in a dimer are studied using a hybrid approach: density functional theory captures the molecular transition density of the p‐nitroaniline molecule, whereas quantum hydrodynamic theory models the plasmonic system. Comparison with a point dipole shows significant deviations in emission rates and spectral positions for gaps ...
Tadele Orbula Otomalo +7 more
wiley +1 more source
Signal reconstruction from discrete-time Wigner distribution
, 2013 Wigner distribution is considered to be one of the most powerful tools for time-frequency analysis of rumvstationary signals. Wigner distribution is a bilinear signal transformation which provides two dimensional time-frequency characterization of one ...
Cheng, Siuling
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Single‐ and Two‐Mode Squeezing by Modulated Coupling to a Rabi Driven Qubit
Advanced Quantum Technologies, Volume 9, Issue 3, March 2026.A scheme for the generation of single‐ and two‐mode conditional‐squeezing of quantum harmonic oscillators by modulated coupling to a Rabi‐driven qubit is proposed. Simulations of a circuit QED system employing the scheme predict squeezing of more than 12dB and preparation of a superposition of 4dB squeezed states.
Eliya Blumenthal +3 more
wiley +1 more source
Distribution of the delay time and the dwell time for wave reflection from a long random potential [PDF]
, 2001 Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)We re-examine and correct an earlier derivation of the distribution of the Wigner phase delay time for wave reflection from a long one-dimensional ...
Ramakrishna, S. Anantha +4 more
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Detecting quasicrystals with quadratic time-frequency distributions
The usefulness of time-frequency analysis methods in the study of quasicrystals was pointed out in a previous paper, where we proved that a tempered distribution $\mu$ on ${\mathbb R}^d$ whose Wigner transform is a measure supported on the cartesian ...
Fernández, Carmen +3 more
core +2 more sources
, 2021 This thesis is centered on a novel approach to quantum uncertainty based on applying the theory of continuous majorization to quantum phase-space distributions.
Van Herstraeten, Zacharie
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Quantum and Fisher information from the Husimi and related distributions [PDF]
, 2006 The two principal/immediate influences-which we seek to interrelate here-upon the undertaking of this study are papers of Zyczkowski and Slomczynski [J. Phys. A 34, 6689 (2001)] and of Petz and Sudar [J. Math. Phys. 37, 2262 (1996)].
Paul B. Slater, Slater, Paul B
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Distributions In The Discrete Cohen Classes
, 2008 The Cohen class of time-frequency distributions for continuous signals has recently been to extended to discrete signals using both an axiomatic approach and an operator theory approach.
Jeffrey C. O'neill +1 more
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Shift Covariant Time-Frequency Distributions of Discrete Signals
, 1997 Many commonly used time-frequency distributions are members of the Cohen class. This class is defined for continuous signals and since time-frequency distributions in the Cohen class are quadratic, the formulation for discrete signals is not ...
Jeffrey C. O'neill +1 more
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