Exact solution of damped harmonic oscillator with a magnetic field in a time dependent noncommutative space

TL;DR

This paper derives exact eigenstates for a damped 2D harmonic oscillator in a time-dependent magnetic field within a noncommutative space, revealing how energy expectation values evolve over time under various conditions.

Contribution

It provides the first exact solutions for a damped harmonic oscillator in a noncommutative space with a time-dependent magnetic field, linking solutions to the Ermakov-Pinney equation.

Findings

Exact eigenstates are obtained for specific damping and magnetic field conditions.

Energy expectation values vary with time depending on system parameters.

Comparison made with non-magnetic case results.

Abstract

In this paper we have obtained the exact eigenstates of a two dimensional damped harmonic oscillator in the presence of an external magnetic field varying with respect to time in time dependent noncommutative space. It has been observed that for some specific choices of the damping factor, the time dependent frequency of the oscillator and the time dependent external magnetic field, there exists interesting solutions of the time dependent noncommutative parameters following from the solutions of the Ermakov-Pinney equation. Further, these solutions enable us to get exact analytic forms for the phase which relates the eigenstates of the Hamiltonian with the eigenstates of the Lewis invariant. Then we compute the expectation value of the Hamiltonian. The expectation values of the energy are found to vary with time for different solutions of the Ermakov-Pinney equation corresponding to different choices of the damping factor, the time dependent frequency of the oscillator and the time dependent applied magnetic field. We also compare our results with those in the absence of the magnetic field obtained earlier.