New exact solutions of the 3D Schrödinger equation
- URL: http://arxiv.org/abs/2506.04725v1
- Date: Thu, 05 Jun 2025 08:01:44 GMT
- Title: New exact solutions of the 3D Schrödinger equation
- Authors: E. E. Perepelkin, B. I. Sadovnikov, N. G. Inozemtseva, A. S. Medvedev,
- Abstract summary: We find a unique quantum system with a positive gauge-invariant Weyl-Stratonovich quasi-probability density function.<n>Explicit expressions for the energy spectrum and the set of eigenfunctions have been found.<n>A solution to the electromagnetic Schr"odinger equation has been obtained, with a magnetic field in the form of a guillemotleftDirac stringguillemotright defined by a singular vortex probability flux field.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Previously we found a unique quantum system with a positive gauge-invariant Weyl-Stratonovich quasi-probability density function which can be defined by the so-called {\guillemotleft}quadratic funnel{\guillemotright} potential [Phys. Rev. A 110 02222 (2024)]. In this work we have constructed a class of exact solutions to the 3D Schr\"odinger equation for a two-parameter {\guillemotleft}quadratic funnel{\guillemotright} potential based on the -model of micro and macro systems. Explicit expressions for the energy spectrum and the set of eigenfunctions have been found. Using gauge invariance for scalar and vector potentials, a solution to the electromagnetic Schr\"odinger equation has been obtained, with a magnetic field in the form of a {\guillemotleft}Dirac string{\guillemotright} defined by a singular vortex probability flux field. Superpositions of eigenfunctions leading to various types of vortex and potential probability current fields have been investigated in detail. The analysis of the quantum system's properties has been carried out within the Wigner-Vlasov formalism.
Related papers
- Quantisations of exactly solvable ghostly models [0.0]
We investigate an exactly solvable two-dimensional Lorentzian coupled quantum system.<n>We map it onto the standard Pais-Uhlenbeck formulation.<n>We report several specific physical properties of the ghost model investigated.
arXiv Detail & Related papers (2025-03-27T12:39:52Z) - Analogue black string in a quantum harmonic oscillator [49.1574468325115]
We write the exact solution of the Klein-Gordon equation in the background of a chargeless, static black string.<n>The eigenvalue problem provides complex energy values for the particle, which may indicate the presence of quasinormal modes.<n>We show a simple quantum system that can imitate the particle in the black string background, whose solutions are also applications of the biconfluent Heun function.
arXiv Detail & Related papers (2024-12-31T15:03:57Z) - Quantum simulation of the Fokker-Planck equation via Schrodingerization [33.76659022113328]
This paper studies a quantum simulation technique for solving the Fokker-Planck equation.
We employ the Schrodingerization method-it converts any linear partial and ordinary differential equation with non-Hermitian dynamics into systems of Schrodinger-type equations.
arXiv Detail & Related papers (2024-04-21T08:53:27Z) - Quantum electrodynamics of lossy magnetodielectric samples in vacuum: modified Langevin noise formalism [55.2480439325792]
We analytically derive the modified Langevin noise formalism from the established canonical quantization of the electromagnetic field in macroscopic media.
We prove that each of the two field parts can be expressed in term of particular bosonic operators, which in turn diagonalize the electromagnetic Hamiltonian.
arXiv Detail & Related papers (2024-04-07T14:37:04Z) - Wigner function properties for electromagnetic systems [0.0]
An exact 3D solution of the Schr"odinger equation for a scalar particle in an electromagnetic field is constructed.
The search for two types of the Wigner functions is conducted.
Knowing the Wigner functions allows one to find the distribution of the mean momentum vector field and the energy spectrum of the quantum system.
arXiv Detail & Related papers (2023-08-24T07:23:23Z) - Third quantization of open quantum systems: new dissipative symmetries
and connections to phase-space and Keldysh field theory formulations [77.34726150561087]
We reformulate the technique of third quantization in a way that explicitly connects all three methods.
We first show that our formulation reveals a fundamental dissipative symmetry present in all quadratic bosonic or fermionic Lindbladians.
For bosons, we then show that the Wigner function and the characteristic function can be thought of as ''wavefunctions'' of the density matrix.
arXiv Detail & Related papers (2023-02-27T18:56:40Z) - Exact solution of the position-dependent mass Schr\"odinger equation
with the completely positive oscillator-shaped quantum well potential [0.0]
Exact solutions of the position-dependent mass Schr"odinger equation corresponding to the proposed quantum well potentials are presented.
The spectrum exhibits positive equidistant behavior for the model confined only with one infinitely high wall and non-equidistant behavior for the model confined with the infinitely high wall from both sides.
arXiv Detail & Related papers (2022-12-26T09:40:44Z) - 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) - Bernstein-Greene-Kruskal approach for the quantum Vlasov equation [91.3755431537592]
The one-dimensional stationary quantum Vlasov equation is analyzed using the energy as one of the dynamical variables.
In the semiclassical case where quantum tunneling effects are small, an infinite series solution is developed.
arXiv Detail & Related papers (2021-02-18T20:55:04Z) - Evolution of a Non-Hermitian Quantum Single-Molecule Junction at
Constant Temperature [62.997667081978825]
We present a theory for describing non-Hermitian quantum systems embedded in constant-temperature environments.
We find that the combined action of probability losses and thermal fluctuations assists quantum transport through the molecular junction.
arXiv Detail & Related papers (2021-01-21T14:33:34Z) - Bilayer graphene in magnetic fields generated by supersymmetry [0.0]
Hamiltonian for electrons in bilayer graphene with applied magnetic fields is solved through second-order supersymmetric quantum mechanics.
New kinds of magnetic fields associated to non-shape-invariant SUSY partner potentials are generated.
arXiv Detail & Related papers (2021-01-13T23:29:41Z)
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.