# Dynamics of a composite quantum bouncing ball

## TL;DR

This paper models a quantum particle with internal states bouncing on a reflector under gravity, predicting that the particle's position expectation can revive over time, revealing complex quantum dynamics.

## Contribution

It introduces a novel quantum bouncing ball model incorporating internal degrees of freedom and predicts revival phenomena in its position expectation.

## Key findings

- Revival of position expectation is possible in the quantum bouncing system.
- The model combines internal degrees of freedom with gravitational bouncing dynamics.
- Predictions suggest observable revival phenomena in such quantum systems.

## Abstract

I construct the state of a quantum particle with internal degree of freedom bouncing on a perfect reflector in presence of gravity. I predict from the result that revival of position expectation is possible for such system.