In this paper, we study a two-dimensional rotationally symmetric harmonic oscillator with
time-dependent frictional force. At the classical level, we solve the equations of motion for a …

We provide a time-dependent Dyson map and metric for the two-dimensional harmonic
oscillator with a non-Hermitian ixy coupling term. This particular time-independent model …

In this work, we use linear invariants and the dynamical invariant method to obtain exact
solutions of the Schrödinger equation for the generalized time-dependent forced harmonic …

The exact wavefunctions for a particle trapped by oscillating fields are obtained in terms of
Mathieu functions with the help of linear invariants and the dynamical invariant method. In …

We present a coherent and consistent framework for explicit time-dependence in non-
Hermitian quantum mechanics. The area of non-Hermitian quantum mechanics has been …

A quantum mechanical theory for description of electronic quasistationary states in two-
dimensional (2D) layered semiconductor nanostructure was developed. A constant external …

In this contribution we use linear invariants and the dynamical invariant method in the
framework of the linear Schrödinger equation to study scalar fields in a Friedman–Robertson …

The spectrum of a Hamiltonian describing the dynamics of a Landau particle with time-
dependent mass and frequency undergoing the influence of a uniform time-dependent …

In this work, we investigate the quantum effects of relic gravitons from a Schrödinger-picture
point of view. By considering the gravity-wave equations in the Friedmann–Robertson …

In this work we present a simple and elegant approach to study the adiabatic and
nonadiabatic evolution of a generalized damped harmonic oscillator which is described by …