Results 21 to 30 of about 75,312 (129)

Fibre bundle formulation of nonrelativistic quantum mechanics. IV. Mixed states and evolution transport's curvature

open access: yes, 1999
We propose a new systematic fibre bundle formulation of nonrelativistic quantum mechanics. The new form of the theory is equivalent to the usual one but it is in harmony with the modern trends in theoretical physics and potentially admits new ...
BOZHIDAR Z. ILIEV   +2 more
core   +1 more source

Efficient quantum processing of three–manifold topological invariants

open access: yes, 2009
A quantum algorithm for approximating efficiently three–manifold topological invariants in the framework of SU(2) Chern–Simons–Witten (CSW) topological quantum field theory at finite values of the coupling constant k is provided. The model of computation
S. Garnerone, A. Marzuoli, M. Rasetti
semanticscholar   +1 more source

What is quantum mechanics trying to tell us? [PDF]

open access: yes, 1998
I explore whether it is possible to make sense of the quantum mechanical description of physical reality by taking the proper subject of physics to be correlation and only correlation, and by separating the problem of understanding the nature of quantum ...
Mermin, N. David
core   +2 more sources

Total Syntheses of β‐ and γ‐Naphthocyclinones

open access: yesAngewandte Chemie, Volume 137, Issue 6, February 3, 2025.
The first total syntheses of β‐ and γ‐naphthocyclinones, the pyranonaphthoquinone dimers sharing unique dibenzobicyclo[3.2.1]octadienone skeleton, have been accomplished. The challenges are 1) stereoselective synthesis of the bicyclic skeleton and 2) enantio‐ and diasteoselective preparation of the pyranonaphthoquinone monomer.
Yoshio Ando   +7 more
wiley   +2 more sources

Diffraction of wave packets in space and time [PDF]

open access: yes, 2000
The phenomenon of wave packet diffraction in space and time is described. It consists in a diffraction pattern whose spatial location progresses with time.
  +6 more
core   +2 more sources

Photochemical Deracemization of N‐Carboxyanhydrides En Route to Chiral α‐Amino Acid Derivatives

open access: yesAngewandte Chemie, Volume 137, Issue 6, February 3, 2025.
N‐Carboxyanhydrides 1 (NCAs) are activated α‐amino acid derivatives that can be modified in a minimum‐waste process to give a variety of products. Photochemical deracemization using chiral catalyst 2 for stereochemical editing of the α‐stereogenic center provided access to intermediates (R)‐1 that can be immediately subjected to further transformations.
Maximilian Iglhaut   +2 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

What can we Learn from Quantum Convolutional Neural Networks?

open access: yesAdvanced Quantum Technologies, EarlyView.
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

A Quantum-Bayesian Route to Quantum-State Space [PDF]

open access: yes, 2009
In the quantum-Bayesian approach to quantum foundations, a quantum state is viewed as an expression of an agent's personalist Bayesian degrees of belief, or probabilities, concerning the results of measurements.
B. Finetti de   +24 more
core   +2 more sources

Enhancing the Potency of Growth Factor‐Mimicking Peptides via Cross‐Presentation With Integrin Ligands

open access: yesJournal of Biomedical Materials Research Part A, Volume 113, Issue 7, July 2025.
ABSTRACT Growth factors enhance survival and integration of transplanted Mesenchymal Stromal Cells (MSC), but successful supplementation often requires supraphysiological growth factor doses, risking off‐target effects. Short peptide mimics like the knuckle epitope (KE) of Bone Morphogenetic Protein 2 (BMP‐2) can be covalently immobilized to ...
Sydney Neal   +6 more
wiley   +1 more source

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