Results 1 to 10 of about 75,208 (126)

What can we Learn from Quantum Convolutional Neural Networks?

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 7, July 2025.
Quantum Convolutional Neural Networks have been long touted as one of the premium architectures for quantum machine learning (QML). But what exactly makes them so successful for tasks involving quantum data? This study unlocks some of these mysteries; particularly highlighting how quantum data embedding provides a basis for superior performance in ...
Chukwudubem Umeano   +3 more
wiley   +1 more source

Luminescent Lanthanide Complexes with Fluorinated Heterocycles as Light‐Harvesting Antennae

open access: yesEuropean Journal of Inorganic Chemistry, Volume 28, Issue 14, May 23, 2025.
The luminescence of trivalent lanthanide (Tb, Eu, Sm, Dy) coordination compounds was optimized. The electronic properties of the light‐harvesting antenna were modulated by regioselective fluorination and trifluoromethylation. The effects of the coordination geometry of the metal ion and the linker connecting the carbostyril and the metal‐binding site ...
Daniel Kocsi   +2 more
wiley   +1 more source

Operational Axioms for Quantum Mechanics [PDF]

open access: yes, 2006
The mathematical formulation of Quantum Mechanics in terms of complex Hilbert space is derived for finite dimensions, starting from a general definition of "physical experiment" and from five simple Postulates concerning "experimental accessibility and ...
D'Ariano, Giacomo Mauro
core   +5 more sources

Fluorescent Carbazole‐Derived Aza[5]Helicenes: Synthesis, Functionalization, and Characterization

open access: yesChemistry – A European Journal, Volume 31, Issue 27, May 14, 2025.
Variously substituted indolophenanthridines, indolocarbazoles, and cinnolinocarbazoles synthesized by ortho fusion from teraryl precursors show significant Stokes shifts, especially for the protonated states of indolophenanthridines and cinnolinocarbazole.
Inka Marten   +2 more
wiley   +1 more source

Precision Activity‐Based α‐Amylase Probes for Dissection and Annotation of Linear and Branched‐Chain Starch‐Degrading Enzymes

open access: yesAngewandte Chemie, Volume 137, Issue 5, January 27, 2025.
Activity‐based probes were designed as a method to annotate substrate specificity of retaining α‐amylases. Fluorescent probes were used in activity‐based protein profiling experiments with pure protein, a prominent gut microbe and in a species‐rich composter sample.
Isabelle B. Pickles   +11 more
wiley   +2 more sources

Do quantum states evolve? Apropos of Marchildon's remarks

open access: yes, 2003
Marchildon's (favorable) assessment (quant-ph/0303170, to appear in Found. Phys.) of the Pondicherry interpretation of quantum mechanics raises several issues, which are addressed.
Mohrhoff, Ulrich
core   +1 more source

Elucidating the Supramolecular Interaction of Positively Supercharged Fluorescent Protein with Anionic Phthalocyanines

open access: yesAdvanced Biology, Volume 9, Issue 5, May 2025.
Positively supercharged mGreenLatern protein is self‐assembled electrostatically with negatively charged zinc phthalocyanines to yield bio‐based photoactive materials in aqueous media. The addition of phthalocyanines results in the formation of large complexes fully quenching of the protein fluorescence. The results indicate an energy transfer from the
Sharon Saarinen   +10 more
wiley   +1 more source

Quantum Mechanics and Discrete Time from "Timeless" Classical Dynamics

open access: yes, 2003
We study classical Hamiltonian systems in which the intrinsic proper time evolution parameter is related through a probability distribution to the physical time, which is assumed to be discrete.
Elze, H. -T.
core   +1 more source

Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2021–2022

open access: yesMass Spectrometry Reviews, Volume 44, Issue 3, Page 213-453, May/June 2025.
Abstract The use of matrix‐assisted laser desorption/ionization (MALDI) mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this review is the 12th update of the original article published in 1999 and brings coverage of the literature to the end of 2022.
David J. Harvey
wiley   +1 more source

Hemiindigoids as Prominent Photoswitch Scaffolds

open access: yesChemPhotoChem, Volume 9, Issue 3, March 2025.
This review explores the synthesis, photophysical properties, and diverse applications of hemiindigoid photoswitches, a class of chromophores derived from indigo. With unique visible‐light responsiveness, high thermal bistability, and rapid, reversible switching, hemiindigoids present promising advances in photopharmacology, molecular solar thermal ...
Aurélie Gernet   +4 more
wiley   +1 more source

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