Results 41 to 50 of about 38,188 (251)

Integrable minisuperspace models with Liouville field: energy density self-adjointness and semiclassical wave packets

European Physical Journal C: Particles and Fields, 2018
The homogeneous cosmological models with a Liouville scalar field are investigated in classical and quantum contexts of Wheeler–DeWitt geometrodynamics. In the quantum case of quintessence field with potential unbounded from below and phantom field, the ...
Alexander A. Andrianov, Chen Lan, Oleg O. Novikov, Yi-Fan Wang   +3 more
doaj   +1 more source

Self-Adjointness of Generalized MIC-Kepler System

, 2007
We have studied the self-adjointness of generalized MIC-Kepler Hamiltonian, obtained from the formally self-adjoint generalized MIC-Kepler Hamiltonian. We have shown that for \tilde l=0, the system admits a 1-parameter family of self-adjoint extensions ...
Abromowitz M., Arutyunyan M. G., Chrtouani L., Dunford N., Lutsenko I. V., Lutsenko I. V., Mardoyan L. G., Nersessian A. P., PULAK RANJAN GIRI, Reed M., Winternitz P.   +10 more
core   +1 more source

Dirac equation in the magnetic-solenoid field [PDF]

, 2002
We consider the Dirac equation in the magnetic-solenoid field (the field of a solenoid and a collinear uniform magnetic field). For the case of Aharonov-Bohm solenoid, we construct self-adjoint extensions of the Dirac Hamiltonian using von Neumann's ...
Gavrilov, S. P., Gitman, D. M., Smirnov, A. A., Voronov, B. L.   +3 more
core   +3 more sources

Scattering and Bound States of a Spin-1/2 Neutral Particle in the Cosmic String Spacetime

Advances in High Energy Physics, 2017
In this paper the relativistic quantum dynamics of a spin-1/2 neutral particle with a magnetic moment μ in the cosmic string spacetime is reexamined by applying the von Neumann theory of self-adjoint extensions.
Fabiano M. Andrade, Cleverson Filgueiras, Edilberto O. Silva   +2 more
doaj   +1 more source

MATHEMATICAL MODEL OF RESONATOR CHAINS IN EXTERNAL MAGNETIC FIELD [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2018
Subject of Research.The paper considers a spectral problem for chains of weakly coupled ball-shaped resonators under the action of an external magnetic field. Two basic geometries are studied composed of identical resonators: the chain with a single kink
A. S. Melikhova
doaj   +1 more source

The Single-Particle density of States, Bound States, Phase-Shift Flip, and a Resonance in the Presence of an Aharonov-Bohm Potential

, 1996
Both the nonrelativistic scattering and the spectrum in the presence of the Aharonov-Bohm potential are analyzed. The single-particle density of states (DOS) for different self-adjoint extensions is calculated.
A. Comtet, A. Comtet, A. J. Niemi, A. Moroz, A. Moroz, A. Moroz, A. Moroz, A. Moroz, A. S. Goldhaber, Alexander Moroz, B. Halperin, B. Simon, B. Thaller, C. C. Tsuei, C. Manuel, C. Manuel, C. R. Hagen, C. R. Hagen, D. Brydges, D. Brydges, D. Loss, D. P. Arovas, E. Akkermans, E. C. Marino, E. C. Svendsen, F. A. Berezin, F. Bloch, F. Wilczek, H. Hogreve, H.-F. Cheung, I. I. Kogan, I. I. Kogan, I. S. Gradshteyn, I. V. Krive, J. Friedel, J. M. Combes, J. M. Leinaas, J. M. Lifschitz, J. R. Kirtley, J. Rammer, J. S. Faulkner, J. Stern, L. D. Landau, M. Abramowitch, M. Alford, M. Berry, M. Bordag, M. Büttiker, M. F. Atiyah, M. G. Krein, M. Kretzschmar, M. Reed, M. Reed, N. Seto, P. de Sousa Gerbert, R. G. Newton, R. J. Eden, R. Jackiw, R. Musto, R. Schrader, S. Albeverio, S. Deser, S. J. Bending, S. N. M. Ruijsenaars, S. Olariu, S. Washburn, S. Washburn, T. A. Osborn, T. Blum, T. Jaroszewicz, T. Kato, V. B. Berestetskii, V. Bargmann, V. N. Gribov, W. C. Henneberger, W. Ehrenberg, Y. Aharonov, Y. Aharonov, Y. Aharonov, Y. Avishai, Y. Hosotani   +80 more
core   +2 more sources

Quasi boundary triples and semi-bounded self-adjoint extensions [PDF]

Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 2017
In this note semi-bounded self-adjoint extensions of symmetric operators are investigated with the help of the abstract notion of quasi boundary triples and their Weyl functions. The main purpose is to provide new sufficient conditions on the parameters in the boundary space to induce self-adjoint realizations, and to relate the decay of the Weyl ...
Behrndt, Jussi, Langer, Matthias, Lotoreichik, Vladimir, Rohleder, Jonathan   +3 more
openaire   +3 more sources

Bridging Optical and Mechanical Metamaterial/Metasurface Realms Toward Integrated Meta‐Systems

Advanced Optical Materials, EarlyView.
This perspective describes the rise of metamaterials in the field of materials science, specifically with optical and mechanical functionality. Fundamentals of both optical and mechanical metamaterials are discussed with a review of state‐of‐the‐art metamaterial science.
Justin Brackenridge, Jaejun Lee, Vladimir V. Tsukruk   +2 more
wiley   +1 more source

The non-self-adjointness of the radial momentum operator in n dimensions

, 2002
The non self-adjointness of the radial momentum operator has been noted before by several authors, but the various proofs are incorrect. We give a rigorous proof that the $n$-dimensional radial momentum operator is not self- adjoint and has no self ...
Albeverio S, Blank J, Cohen-Tannoudji C, Dirac P A M, Essén H, Gil Paz, Levin O, Liboff R L, Messiah A, Paz G, Reed M, Twamley J   +11 more
core   +2 more sources

Self-adjoint and non-self-adjoint extensions of symmetric q-Sturm-Liouville operators

Filomat, 2023
Aspace of boundary values is constructed for minimal symmetric regular and singular q-Sturm- Liouville operators in limit-point and limit-circle cases. A description of all maximal dissipative, maximal accumulative, self-adjoint, and other extensions of such symmetric q-Sturm-Liouville operators is given in terms of boundary conditions.
Isayev, Hamlet A., Allahverdiev, Bilender P.   +1 more
openaire   +2 more sources