Graphene in complex magnetic fields
- URL: http://arxiv.org/abs/2203.03829v2
- Date: Fri, 11 Mar 2022 00:39:12 GMT
- Title: Graphene in complex magnetic fields
- Authors: DJ Fern\'andez and JD Garc\'ia-Mu\~noz
- Abstract summary: The eigenvalue problem for the non-hermitian Dirac-Weyl Hamiltonian leads to a pair of intertwined Schr"odinger equations.
The probability and currents densities are explored and some remarkable differences as compared with the real case are observed.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Exact analytic solutions for an electron in graphene interacting with
external complex magnetic fields are found. The eigenvalue problem for the
non-hermitian Dirac-Weyl Hamiltonian leads to a pair of intertwined
Schr{\"o}dinger equations, which are solved by means of supersymmetric quantum
mechanics. Making an analogy with the non-uniform strained graphene a
prospective physical interpretation for the complex magnetic field is given.
The probability and currents densities are explored and some remarkable
differences as compared with the real case are observed.
Related papers
- Generalized Gouy Rotation of Electron Vortex beams in uniform magnetic fields [54.010858975226945]
We study the dynamics of EVBs in magnetic fields using exact solutions of the relativistic paraxial equation in magnetic fields.
We provide a unified description of different regimes under generalized Gouy rotation, linking the Gouy phase to EVB rotation angles.
This work offers new insights into the dynamics of EVBs in magnetic fields and suggests practical applications in beam manipulation and beam optics of vortex particles.
arXiv Detail & Related papers (2024-07-03T03:29:56Z) - Topological Effects on Non-Relativistic Eigenvalue Solutions Under
AB-Flux Field with Pseudoharmonic- and Mie-type Potentials [0.0]
We investigate the quantum dynamics of a Schr"odinger particle confined by the Aharonov-Bohm flux field.
We show that the eigenvalue solutions shift more due to the magnetic flux in addition to the topological defects.
arXiv Detail & Related papers (2022-10-04T04:56:43Z) - Complex Supersymmetry in Graphene [0.0]
This work analyzes monolayer graphene in external electromagnetic fields, which is described by the Dirac equation with minimal coupling.
Supersymmetric quantum mechanics allows building new Dirac equations with modified magnetic fields.
arXiv Detail & Related papers (2022-03-15T18:07:28Z) - Dispersive readout of molecular spin qudits [68.8204255655161]
We study the physics of a magnetic molecule described by a "giant" spin with multiple $d > 2$ spin states.
We derive an expression for the output modes in the dispersive regime of operation.
We find that the measurement of the cavity transmission allows to uniquely determine the spin state of the qudits.
arXiv Detail & Related papers (2021-09-29T18:00:09Z) - 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) - Molecular Interactions Induced by a Static Electric Field in Quantum
Mechanics and Quantum Electrodynamics [68.98428372162448]
We study the interaction between two neutral atoms or molecules subject to a uniform static electric field.
Our focus is to understand the interplay between leading contributions to field-induced electrostatics/polarization and dispersion interactions.
arXiv Detail & Related papers (2021-03-30T14:45:30Z) - 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) - Electron in bilayer graphene with magnetic fields leading to shape
invariant potentials [0.0]
The quantum behavior of electrons in bilayer graphene with applied magnetic fields is addressed.
By using second-order supersymmetric quantum mechanics the problem is transformed into two intertwined one dimensional stationary Schr"odinger equations.
The associated spectrum is analyzed, and the probability and current densities are determined.
arXiv Detail & Related papers (2020-06-03T00:13:34Z) - General quantum-mechanical solution for twisted electrons in a uniform
magnetic field [68.8204255655161]
A theory of twisted (and other structured) paraxial electrons in a uniform magnetic field is developed.
The observable effect of a different behavior of relativistic Laguerre-Gauss beams with opposite directions of the orbital angular momentum penetrating from the free space into a magnetic field is predicted.
arXiv Detail & Related papers (2020-05-13T16:35:10Z) - Paraxial wave function and Gouy phase for a relativistic electron in a
uniform magnetic field [68.8204255655161]
A connection between quantum mechanics and paraxial equations is established for a Dirac particle in external fields.
The paraxial form of the Landau eigenfunction for a relativistic electron in a uniform magnetic field is determined.
arXiv Detail & Related papers (2020-03-08T13:14:44Z)
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.