Two dimensional non-Hermitian harmonic oscillator: coherent states
- URL: http://arxiv.org/abs/2012.04526v1
- Date: Tue, 8 Dec 2020 16:16:04 GMT
- Title: Two dimensional non-Hermitian harmonic oscillator: coherent states
- Authors: Masoumeh Izadparast and S. Habib Mazharimousavi
- Abstract summary: The corresponding time independent Schr"odinger equation yields real eigenvalues with complex eigenfunctions.
We construct the coherent state of the system by using a superposition of 12 eigenfunctions.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: In this study, we introduce a two dimensional complex harmonic oscillator
potential with space and time reflection symmetries. The corresponding time
independent Schr\"odinger equation yields real eigenvalues with complex
eigenfunctions. We also construct the coherent state of the system by using a
superposition of 12 eigenfunctions. Using the complex correspondence principle
for the probability density we investigate the possible modifications in the
probability densities due to the non-Hermitian aspect of the Hamiltonian.
Related papers
- Pseudo-Hermitian extensions of the harmonic and isotonic oscillators [9.944647907864256]
We describe certain pseudo-Hermitian extensions of the harmonic and isotonic oscillators.
We explicitly solve for the wavefunctions in the position representation and also explore their intertwining relations.
arXiv Detail & Related papers (2024-08-02T17:15:17Z) - Imaginary eigenvalues of Hermitian Hamiltonian with an inverted
potential well and transition to the real spectrum at exceptional point by a
non-Hermitian interaction [0.6144680854063939]
The Hermitian Hamiltonian can possess imaginary eigenvalues in contrast with the common belief that hermiticity is a suffcient condition for real spectrum.
The classical counterpart of the quantum Hamiltonian with non-Hermitian interaction is a complex function of canonical variables.
It becomes by the canonical transformation of variables a real function indicating exactly the one to one quantum-classical correspondence of Hamiltonians.
arXiv Detail & Related papers (2024-02-09T02:58:06Z) - On the entanglement of co-ordinate and momentum degrees of freedom in
noncommutative space [0.0]
We investigate the quantum entanglement induced by phase-space noncommutativity.
The entanglement properties of coordinate and momentum degrees of freedom are studied.
We show that the mere inclusion of non-commutativity of phase-space is not sufficient to generate the entanglement.
arXiv Detail & Related papers (2024-01-05T18:43:47Z) - Hamiltonian formulation of linear non-Hermitian systems [7.298673108358943]
For a linear non-Hermitian system, I demonstrate that a Hamiltonian can be constructed such that the non-Hermitian equations can be expressed exactly in the form of Hamilton's canonical equations.
arXiv Detail & Related papers (2023-09-12T12:12:32Z) - Quasi-integrability and nonlinear resonances in cold atoms under
modulation [11.286969347667473]
We present an exact analysis of the evolution of a two-level system under the action of a time-dependent matrix Hamiltonian.
The dynamics is shown to evolve on two coupled potential energy surfaces, one of them binding while the other one scattering type.
arXiv Detail & Related papers (2023-09-08T09:42:25Z) - Algebraic discrete quantum harmonic oscillator with dynamic resolution
scaling [22.20907440445493]
We develop an algebraic formulation for the discrete quantum harmonic oscillator (DQHO)
This formulation does not depend on the discretization of the Schr"odinger equation and recurrence relations of special functions.
The coherent state of the DQHO is constructed, and its expected position is proven to oscillate as a classical harmonic oscillator.
arXiv Detail & Related papers (2023-04-04T03:02:03Z) - On the two-dimensional time-dependent anisotropic harmonic oscillator in
a magnetic field [0.0]
We have considered a two-dimensional anisotropic harmonic oscillator placed in a time-dependent magnetic field.
An orthonormal basis of the Hilbert space consisting of the eigenvectors of $hatmathcalI$ is obtained.
Separability Criterion for the bipartite coherent states corresponding to our system has been demonstrated.
arXiv Detail & Related papers (2022-06-30T17:19:09Z) - Angular Momentum Eigenstates of the Isotropic 3-D Harmonic Oscillator:
Phase-Space Distributions and Coalescence Probabilities [0.0]
We compute the probabilities for coalescence of two distinguishable, non-relativistic particles into a bound state.
We use a phase-space formulation and hence need the Wigner distribution functions of angular momentum eigenstates.
arXiv Detail & Related papers (2021-12-22T23:16:44Z) - Entanglement dynamics of spins using a few complex trajectories [77.34726150561087]
We consider two spins initially prepared in a product of coherent states and study their entanglement dynamics.
We adopt an approach that allowed the derivation of a semiclassical formula for the linear entropy of the reduced density operator.
arXiv Detail & Related papers (2021-08-13T01:44:24Z) - Intrinsic decoherence dynamics in the three-coupled harmonic oscillators
interaction [77.34726150561087]
We give an explicit solution for the complete equation, i.e., beyond the usual second order approximation used to arrive to the Lindblad form.
arXiv Detail & Related papers (2021-08-01T02:36:23Z) - On the construction of non-Hermitian Hamiltonians with all-real spectra
through supersymmetric algorithms [0.0]
The energy spectra of two different quantum systems are paired through supersymmetric algorithms.
One of the systems is Hermitian and the other is characterized by a complex-valued potential.
arXiv Detail & Related papers (2020-01-09T00:42:22Z)
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.