A note on a classical dynamical system and its quantization

Fuente: arXiv
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Main Author: Bagarello, Fabio
Format: Preprint
Published: 2025
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author Bagarello, Fabio
author_facet Bagarello, Fabio
contents In a recent paper a slightly modified version of the Bateman system, originally proposed to describe a damped harmonic oscillator, was proposed. This system is really different from the Bateman's one, in the sense that this latter cannot be recovered for any choice of its parameters. In this paper we consider this system and we show that, at a quantum level, it is not necessarily dissipative. In particular we show that the Hamiltonian of the system, when quantized, produces different behaviors, depending on some relations between its parameters. In fact, it gives rise to either a two dimensional (standard) harmonic oscillator, or to two independent oscillators, one of which is again {\em standard}, and a second one which is an inverted oscillator. The two cases are analyzed in terms of bosonic or pseudo-bosonic ladder operators, and the appearance of distributions for the inverted oscillator is commented.
format Preprint
id arxiv_https___arxiv_org_abs_2506_21989
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A note on a classical dynamical system and its quantization
Bagarello, Fabio
Mathematical Physics
Quantum Physics
In a recent paper a slightly modified version of the Bateman system, originally proposed to describe a damped harmonic oscillator, was proposed. This system is really different from the Bateman's one, in the sense that this latter cannot be recovered for any choice of its parameters. In this paper we consider this system and we show that, at a quantum level, it is not necessarily dissipative. In particular we show that the Hamiltonian of the system, when quantized, produces different behaviors, depending on some relations between its parameters. In fact, it gives rise to either a two dimensional (standard) harmonic oscillator, or to two independent oscillators, one of which is again {\em standard}, and a second one which is an inverted oscillator. The two cases are analyzed in terms of bosonic or pseudo-bosonic ladder operators, and the appearance of distributions for the inverted oscillator is commented.
title A note on a classical dynamical system and its quantization
topic Mathematical Physics
Quantum Physics
url https://arxiv.org/abs/2506.21989