Results 141 to 150 of about 1,414,924 (189)

Why We Do Not Need Dark Energy to Explain Cosmological Acceleration

AppliedMath
It has been shown that at the present stage of the evolution of the universe, cosmological acceleration is an inevitable kinematical consequence of quantum theory in semiclassical approximation.
Felix M. Lev
doaj   +1 more source

Hilbert's Basis Theorem for Poisson Ore Extensions

Mathematische Nachrichten, Volume 299, Issue 11, Page 3464-3470, November 2026.
ABSTRACT We prove an analogue of Hilbert's basis theorem for Poisson Ore extensions and Poisson Laurent Ore extensions. We also obtain corresponding results for iterated Poisson Ore extensions and iterated Poisson Laurent Ore extensions associated to commuting Poisson‐pairs.
Per Bäck, Patrik Lundström, Johan Öinert, Johan Richter   +3 more
wiley   +1 more source

Feature‐Level Analysis and Adversarial Transfer in Rotationally Equivariant Quantum Machine Learning

Advanced Quantum Technologies, Volume 9, Issue 11, November 2026.
A detailed feature‐level analysis reveals how symmetry‐dependent features relate to adversarial transfer robustness in equivariant quantum machine learning models, paving the way for the design of future models with improved robustness. ABSTRACT Group‐equivariant quantum models are designed to exploit symmetry and can improve trainability, but it ...
Maureen Krumtünger
wiley   +1 more source

The Spontaneous Disentanglement Hypothesis and Causality

Advanced Quantum Technologies, Volume 9, Issue 11, November 2026.
The hypothesis that disentanglement spontaneously occurs in quantum systems is motivated by some outstanding issues in the foundations of quantum mechanics. However, for some cases, spontaneous disentanglement enables the violation of the causality principle.
Eyal Buks
wiley   +1 more source

A q$q$‐analogue of graph independence polynomials with a group‐theoretic interpretation

Bulletin of the London Mathematical Society, Volume 58, Issue 11, November 2026.
Abstract We define totally‐isotropic space polynomials of alternating matrix spaces over finite fields, by analogy with independence polynomials of graphs. Our main result shows that totally‐isotropic space polynomials of graphical alternating matrix spaces give rise to a natural q$q$‐analogue of graph independence polynomials. For p$p$‐groups of class
Youming Qiao
wiley   +1 more source

Carroll–Schrödinger equation as the ultra-relativistic limit of the tachyon equation

Scientific Reports
The Poincaré symmetry can be contracted in two ways to yield the Galilei symmetry and the Carroll symmetry. The well-known Schrödinger equation exhibits the Galilei symmetry and is a fundamental equation in Galilean quantum mechanics.
Mojtaba Najafizadeh
doaj   +1 more source

vibe‐qc: An Open‐Source, General‐Purpose Electronic‐Structure Code for Molecules and Solids Developed With Generative AI

Journal of Computational Chemistry, Volume 47, Issue 28, October 30, 2026.
vibe‐qc is an open‐source, general‐purpose electronic‐structure code for molecules and solids, developed almost entirely with agentic AI under expert human direction. Molecular and periodic calculations use a common interface. Independent reference calculations form a reusable validation set.
Michael F. Peintinger
wiley   +1 more source

A Practical Guide to First‐Principles Calculations for Pseudocapacitive Materials: From Electrochemical Experiments to Atomistic Understanding

ChemElectroChem, Volume 13, Issue 20, 16 October 2026.
Electrochemical experiments reveal what happens, whereas first principles calculations explain why. Emerging computational electrochemistry is bridging these perspectives, enabling quantitative understanding of electrode/electrolyte interfaces and enabling the rational design of next‐generation energy storage materials.
Kenji Oqmhula, Ryo Maezono, Kenta Hongo
wiley   +1 more source

Noncommutativity in Configuration Space Induced by a Conjugate Magnetic Field in Phase Space

Mathematics
An external magnetic field in configuration space coupled to quantum dynamics induces noncommutativity in its velocity momentum space. By phase space duality, an external vector potential in the conjugate momentum sector of the system induces ...
Jan Govaerts
doaj   +1 more source

Polynomial Poisson algebras: Gel'fand-Kirillov problem and Poisson spectra [PDF]

, 2014
We study the fields of fractions and the Poisson spectra of polynomial Poisson algebras. First we investigate a Poisson birational equivalence problem for polynomial Poisson algebras over a field of arbitrary characteristic.
Lecoutre, César
core