On the two-dimensional hydrogen atom in a circular box in the presence of an electric field
- URL: http://arxiv.org/abs/2504.18928v1
- Date: Sat, 26 Apr 2025 14:00:28 GMT
- Title: On the two-dimensional hydrogen atom in a circular box in the presence of an electric field
- Authors: Paolo Amore, Francisco M. Fernández,
- Abstract summary: We revisit the quantum-mechanical two-dimensional hydrogen atom with an electric field confined to a circular box.<n>An interesting feature of the model is accidental degeneracy and splitting of energy levels due to the presence of the electric field.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We revisit the quantum-mechanical two-dimensional hydrogen atom with an electric field confined to a circular box of impenetrable wall. In order to obtain the energy spectrum we resort to the Rayleigh-Ritz method with a polynomial basis sets. We discuss the limits of large and small box radius and the symmetry of the solutions of the Schr\"{o}dinger equation. An interesting feature of the model is the appearance of accidental degeneracy and the splitting of degenerate energy levels due to the presence of the electric field.
Related papers
- On the two-dimensional harmonic oscillator with an electric field confined to a circular box [0.0]
We revisit the quantum-mechanical two-dimensional harmonic oscillator with an electric field confined to a circular box.
In order to obtain the energy spectrum we resort to Rayleigh-Ritzitz method with impenetrable walls and Gaussian basis sets.
We discuss the limits of large and small box radius and also do some calculations with perturbation theory.
arXiv Detail & Related papers (2024-08-02T22:36:48Z) - Casimir Energy in (2 + 1)-Dimensional Field Theories [44.99833362998488]
Two types of boundary conditions give rise to two different exponential decay regimes of the Casimir energy at large distances.
Non-perturbative numerical simulations and analytical arguments show such an exponential decay for Dirichlet boundary conditions of SU(2) gauge theories.
arXiv Detail & Related papers (2024-05-06T18:08:31Z) - Dynamics and Resonance Fluorescence from a Superconducting Artificial Atom Doubly Driven by Quantized and Classical Fields [11.961708412157757]
Experimental demonstration of resonance fluorescence in a two-level superconducting artificial atom under two driving fields coupled to a detuned cavity.
The device consists of a transmon qubit strongly coupled to a one-dimensional transmission line and a coplanar waveguide resonator.
arXiv Detail & Related papers (2024-03-17T08:48:30Z) - Unveiling the Quantum Toroidal Dipole in Nanosystems: Quantization,
Interaction Energy, and Measurement [44.99833362998488]
We investigate a quantum particle confined to a toroidal surface in the presence of a filiform current along the system's rotational axis.
Our analysis reveals that the interaction between the particle and the current induces a non-zero toroidal dipole in the particle's stationary states.
arXiv Detail & Related papers (2024-01-26T13:31:32Z) - Bound state solutions of the two--dimensional Schr\"{o}dinger equation
with Kratzer--type potentials [0.0]
The Schr"odinger equation is applied for a solution of a two-dimensional (2D) problem for two particles interacting via Kratzer, and modified Kratzer potentials.
We found the exact bound state solutions of the two-dimensional Schr"odinger equation with Kratzer-type potentials.
arXiv Detail & Related papers (2023-11-05T16:04:55Z) - Energetics of the dissipative quantum oscillator [22.76327908349951]
We discuss some aspects of the energetics of a quantum Brownian particle placed in a harmonic trap.
Based on the fluctuation-dissipation theorem, we analyze two distinct notions of thermally-averaged energy.
We generalize our analysis to the case of the three-dimensional dissipative magneto-oscillator.
arXiv Detail & Related papers (2023-10-05T15:18:56Z) - Bound state of distant photons in waveguide quantum electrodynamics [137.6408511310322]
Quantum correlations between distant particles remain enigmatic since the birth of quantum mechanics.
We predict a novel kind of bound quantum state in the simplest one-dimensional setup of two interacting particles in a box.
Such states could be realized in the waveguide quantum electrodynamics platform.
arXiv Detail & Related papers (2023-03-17T09:27:02Z) - Electron scattering of mass-inverted in graphene quantum dots [0.0]
We study the scattering of Dirac electrons of circular graphene quantum dot with mass-inverted subject to electrostatic potential.
It is found that the presence of a mass term outside in addition to another one inside the quantum dot strongly affects the scattering of electrons.
arXiv Detail & Related papers (2022-02-25T18:37:26Z) - Stochastic Variational Approach to Small Atoms and Molecules Coupled to
Quantum Field Modes [55.41644538483948]
We present a variational calculation (SVM) of energies and wave functions of few particle systems coupled to quantum fields in cavity QED.
Examples for a two-dimensional trion and confined electrons as well as for the He atom and the Hydrogen molecule are presented.
arXiv Detail & Related papers (2021-08-25T13:40:42Z) - Electronic Properties of Graphene Quantum Ring with Wedge Disclination [0.0]
We study the energy spectrum and persistent current of charge carriers confined in a graphene quantum ring geometry.
We consider the case where the crystal symmetry is locally modified by replacing a hexagon by a pentagon, square, heptagon or octagon.
We also investigate the persistent currents that appear in the quantum ring and how wedge disclination influences different quantum transport quantities.
arXiv Detail & Related papers (2020-07-04T16:46:33Z) - Quantum Simulation of 2D Quantum Chemistry in Optical Lattices [59.89454513692418]
We propose an analog simulator for discrete 2D quantum chemistry models based on cold atoms in optical lattices.
We first analyze how to simulate simple models, like the discrete versions of H and H$+$, using a single fermionic atom.
We then show that a single bosonic atom can mediate an effective Coulomb repulsion between two fermions, leading to the analog of molecular Hydrogen in two dimensions.
arXiv Detail & Related papers (2020-02-21T16:00:36Z)
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.