Results 81 to 90 of about 417,302 (266)
A Field Guide to Non‐Onsager Quantum Oscillations in Metals
Advanced Physics Research, Volume 4, Issue 4, April 2025.The observation of quantum oscillations is usually taken as strong evidence for the existence of a Fermi surface according to the famous Onsager relation. The article reviews mechanisms that generate quantum oscillation frequencies that defy the Onsager relation where special emphasis is put on the recently discovered quasi‐particle lifetime ...
Valentin Leeb +4 more
wiley +1 more source
Quantum Mechanics in Plasmonic Nanocavities: from Theory to Applications
Advanced Physics Research, Volume 4, Issue 4, April 2025.Plasmonic nanocavities based on nanoparticle‐on‐mirror (NPoM) geometry provide a facile and versatile platform for quantum plasmonics and its applications. This review focuses on the fundamental theories of quantum plasmonics, its modeling and computation strategies, and its applications. It is suggested that the proper selection of material systems is
Tao Ding +4 more
wiley +1 more source
Exotic Baryons in Chiral Soliton Models
Universe, 2018 We cautiously review the treatment of pentaquark exotic baryons in chiral soliton models. We consider two examples and argue that any consistent and self-contained description must go beyond the mean field approximation that only considers the classical ...
Herbert Weigel
doaj +1 more source
Analysis of Quantum Radar Cross-Section by Canonical Quantization Method (Full Quantum Theory)
IEEE Access, 2020 This article investigates the difference between two quantum-based theories to calculate the radar cross-section (RCS). Quantum radar cross-section (QRCS) has been commonly analyzed using the dipole approximation method, and the related results show that
Ahmad Salmanogli, Dincer Gokcen
doaj +1 more source
Foundations of Ghost Stability
Fortschritte der Physik, Volume 73, Issue 4, April 2025.Abstract The authors present a new method to analytically prove global stability in ghost‐ridden dynamical systems. The proposal encompasses all prior results and consequentially extends them. In particular, it is shown that stability can follow from a conserved quantity that is unbounded from below, contrary to expectation.
Verónica Errasti Díez +2 more
wiley +1 more source
Canonical quantization of motion on submanifolds [PDF]
Reports on Mathematical Physics, 2009 This is an extended version of the talk given by the Author at the 40th Symposium on Mathematical Physics held in Torun, Poland, June 25-28, 2008. We review the methods of canonical quantization of free particle motion on curved submanifolds considered as a system with second class constraints.
openaire +3 more sources
Fast-forward scheme reexamined: Choice of time and quantization
Results in Physics, 2022 The fast-forward scheme for accelerating time evolution of quantum states through change of time is reexamined. Dirac’s homogeneous formalism for classical dynamics and canonical quantization warrant that the Schrödinger equation is covariant under ...
Sumiyoshi Abe
doaj
Which Quantum Theory Must be Reconciled with Gravity? (And What Does it Mean for Black Holes?)
Universe, 2016 We consider the nature of quantum properties in non-relativistic quantum mechanics (QM) and relativistic quantum field theories, and examine the connection between formal quantization schemes and intuitive notions of wave-particle duality.
Matthew J. Lake
doaj +1 more source
Hardy's uncertainty principle for Schrödinger equations with quadratic Hamiltonians
Journal of the London Mathematical Society, Volume 111, Issue 4, April 2025.Abstract Hardy's uncertainty principle is a classical result in harmonic analysis, stating that a function in L2(Rd)$L^2(\mathbb {R}^d)$ and its Fourier transform cannot both decay arbitrarily fast at infinity. In this paper, we extend this principle to the propagators of Schrödinger equations with quadratic Hamiltonians, known in the literature as ...
Elena Cordero +2 more
wiley +1 more source
Canonical Quantization and Black Hole Perturbations [PDF]
AIP Conference Proceedings, 2005 We examine the possibility of a constraint-free quantization of linearized gravity, based on the Teukolsky equation for black hole perturbations. We exhibit a simple quadratic (but complex) Lagrangian for the Teukolsky equation, leading to the interpretation that the elementary excitations (gravitons bound to the Kerr black hole) are unstable.
Árpád Lukács, Zoltán Perjés
openaire +3 more sources