Results 141 to 150 of about 64,076 (329)

Unraveling Non‐Cubic Atomic Ordering in Surfactant‐Free AuAg Decahedral Nanoparticles by Pair Distribution Function (PDF) Analysis

open access: yesParticle &Particle Systems Characterization, EarlyView.
The atomic arrangement of few‐nm‐wide surfactant‐free noble metal (AuAg) decahedral nanoparticles is characterized using a structural refinement based on Pair Distribution Function (PDF) derived from Precession Electron Diffraction (PED). The results indicate that the measured structure is not well described by the classical Bagley body‐centered ...
Leonardo M. Corrêa   +3 more
wiley   +1 more source

Propagation of Electromagnetic Waves in Optically Anisotropic Materials: Polarization and Intensity Behavior

open access: yesphysica status solidi (RRL) – Rapid Research Letters, EarlyView.
The polarization change of an arbitrarily polarized wave in an optically anisotropic medium is discussed, focusing on cases where the refractive index, the extinction coefficient, and the two eigenmodes are degenerated. The polarization converges to that of the eigenmode with the lowest extinction coefficient, except when the extinction coefficients ...
Chris Sturm, Marius Grundmann
wiley   +1 more source

Statistical Complexity of Quantum Learning

open access: yesAdvanced Quantum Technologies, EarlyView.
The statistical performance of quantum learning is investigated as a function of the number of training data N$N$, and of the number of copies available for each quantum state in the training and testing data sets, respectively S$S$ and V$V$. Indeed, the biggest difference in quantum learning comes from the destructive nature of quantum measurements ...
Leonardo Banchi   +3 more
wiley   +1 more source

Dynamic Continuous Variable Quantum Key Distribution for Securing a Future Global Quantum Network

open access: yesAdvanced Quantum Technologies, EarlyView.
The article explores securing a dynamic global quantum network using continuous variable QKD, proposing a unified three‐layer network architecture for integrating existing QKD networks. It evaluates secret key rates across various channels and introduces the link capacity as a metric for determining the optimum path for secret key distribution in a ...
Mikhael T. Sayat   +4 more
wiley   +1 more source

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