The Casimir effect at the nucleus
- URL: http://arxiv.org/abs/2402.01776v1
- Date: Thu, 1 Feb 2024 14:57:24 GMT
- Title: The Casimir effect at the nucleus
- Authors: Frank Kowol
- Abstract summary: This report presents a modification for the potential of electrons near the nucleus by investigating the impact of the Casimir effect on the innermost electrons.
It can be shown that with this approach the calculated binding energies agree much better with the values from spectroscopy, especially for heavy elements.
- Score: 0.0
- License: http://creativecommons.org/licenses/by-nc-sa/4.0/
- Abstract: In this report, the impact of the Casimir effect in the near-nuclear
environment on electrons, in particular of the K-shell, is investigated. It has
long been known that the experimentally measured binding energies of the inner
electrons, especially for heavy elements, agree only to a very limited extent
with the theoretical solutions of the Schroedinger and Dirac equations. This
report presents a modification for the potential of electrons near the nucleus
by investigating the impact of the Casimir effect on the innermost electrons.
It can be shown that with this approach the calculated binding energies agree
much better with the literature values from spectroscopy, especially for heavy
elements. In addition, the innermost electrons are apparently influenced much
more strongly than previously assumed by the nature of the nuclear surface, in
particular the deviation from the spherical geometry, e.g. the multipole
moments and not least the range of the strong interaction. This effect is not
to be confused with the quantum-mechanical quadrupole energy (Casimir 1936),
which is determined by spin interactions between nucleus and electron, but the
effect discussed in this report is a distance dominated effect of the
s-electrons to the nucleus. It offers the possibility of investigating the
nucleus structure and isotope effects on the binding energies much more
precisely than expected, e.g. by spectroscopy, and thus gaining new insights
into the respective nuclear structure and geometry. At the same time, this
approach shows that the probability of the electrons staying close to the
nucleus is apparently significantly higher than assumed in previous atomic
models. This may also increase the transition probabilities of electron
capture, and thus the model enables a higher accuracy for the calculation of
the theoretical half lifetimes for electron capture decay.
Related papers
- Decoherence due to Casimir effect? [0.0]
In this work it is shown that the off-diagonal elements of the reduced density matrix of the electron are suppressed due to the sudden switching on of the interaction with the environment.
It can only originate from emission of bremsstrahlung by the electron, due to the acceleration caused by the effective Coulomb potential of all the infinite image charges.
arXiv Detail & Related papers (2024-09-05T19:02:45Z) - Electron Dynamics in Neutron Scattering with Hydrogen Atoms [0.0]
Changes in electron dynamics within the gas target have a negligible effect on dynamics of neutrons and protons.
We propose a theoretical approach to obtain these parameters from the momentum spectrum of ionized electrons within a hydrogen atomic gas target.
arXiv Detail & Related papers (2023-09-25T19:09:52Z) - Quantum interaction of sub-relativistic aloof electrons with mesoscopic
samples [91.3755431537592]
Relativistic electrons experience very slight wave packet distortion and negligible momentum recoil when interacting with nanometer-sized samples.
Modelling fast electrons as classical point-charges provides extremely accurate theoretical predictions of energy-loss spectra.
arXiv Detail & Related papers (2022-11-14T15:22:37Z) - Relativistic effects on electronic pair densities: a perspective from
the radial intracule and extracule probability densities [0.0]
We study the effect on the pair probability, intracule, and extracule densities caused by relativity.
Preliminary results suggest that this observation is also valid when electronic correlation effects are considered.
arXiv Detail & Related papers (2022-09-20T08:13:43Z) - Relativistic aspects of orbital and magnetic anisotropies in the
chemical bonding and structure of lanthanide molecules [60.17174832243075]
We study the electronic and ro-vibrational states of heavy homonuclear lanthanide Er2 and Tm2 molecules by applying state-of-the-art relativistic methods.
We were able to obtain reliable spin-orbit and correlation-induced splittings between the 91 Er2 and 36 Tm2 electronic potentials dissociating to two ground-state atoms.
arXiv Detail & Related papers (2021-07-06T15:34:00Z) - Photon-mediated interactions near a Dirac photonic crystal slab [68.8204255655161]
We develop a theory of dipole radiation near photonic Dirac points in realistic structures.
We find positions where the nature of the collective interactions change from being coherent to dissipative ones.
Our results significantly improve the knowledge of Dirac light-matter interfaces.
arXiv Detail & Related papers (2021-07-01T14:21:49Z) - Three-electron correlations in strong laser field ionization: Spin
induced effects [0.0]
We study model atoms with three active electrons interacting with strong pulsed radiation, using an ab-initio time-dependent Schr"odinger equation on a grid.
We show that significant differences are obtained between model Neon and Nitrogen atoms.
These differences are traced back to the different symmetries of the electronic wavefunctions, and directly related to the different initial state spin components.
arXiv Detail & Related papers (2021-04-29T15:57:00Z) - Driven dynamics of a quantum dot electron spin coupled to bath of
higher-spin nuclei [0.0]
We study the interplay of optical driving and hyperfine interaction between an electron confined in a quantum dot and its surrounding nuclear spin environment.
We find that while hyperfine interactions drive dynamic nuclear polarization and mode-locking, quadrupolar couplings counteract these effects.
arXiv Detail & Related papers (2020-12-14T03:00:18Z) - Electrically tuned hyperfine spectrum in neutral
Tb(II)(Cp$^{\rm{iPr5}}$)$_2$ single-molecule magnet [64.10537606150362]
Both molecular electronic and nuclear spin levels can be used as qubits.
In solid state systems with dopants, an electric field was shown to effectively change the spacing between the nuclear spin qubit levels.
This hyperfine Stark effect may be useful for applications of molecular nuclear spins for quantum computing.
arXiv Detail & Related papers (2020-07-31T01:48:57Z) - Hyperfine and quadrupole interactions for Dy isotopes in DyPc$_2$
molecules [77.57930329012771]
Nuclear spin levels play an important role in understanding magnetization dynamics and implementation and control of quantum bits in lanthanide-based single-molecule magnets.
We investigate the hyperfine and nuclear quadrupole interactions for $161$Dy and $163$Dy nucleus in anionic DyPc$.
arXiv Detail & Related papers (2020-02-12T18:25:31Z) - Quantum decoherence by Coulomb interaction [58.720142291102135]
We present an experimental study of the Coulomb-induced decoherence of free electrons in a superposition state in a biprism electron interferometer close to a semiconducting and metallic surface.
The results will enable the determination and minimization of specific decoherence channels in the design of novel quantum instruments.
arXiv Detail & Related papers (2020-01-17T04:11:44Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.