# Hidden Vacuum Rabi oscillations: Dynamical Quantum Superpositions of On/Off Interaction between a Single Quantum Dot and a Microcavity

## TL;DR

This paper demonstrates the creation of quantum superpositions involving on/off states of light-matter interaction in a quantum dot-microcavity system, revealing counterintuitive quantum dynamics and correlations in steady states.

## Contribution

It introduces a method to realize superpositions of switched interaction states, enabling observation of unique quantum effects in a single quantum dot-cavity system.

## Key findings

- Observation of vacuum Rabi oscillations in joint detection probabilities.
- Quantum correlations persist in nonequilibrium steady states.
- Counterintuitive quantum conditional dynamics effects observed.

## Abstract

We show that it is possible to realize quantum superpositions of switched-on and -off strong light-matter interaction in a single quantum dot- semiconductor microcavity system. Such superpositions enable the observation of counterintuitive quantum conditional dynamics effects. Situations are possible where cavity photons as well as the emitter luminescence display exponential decay but their joint detection probability exhibits vacuum Rabi oscillations. Remarkably, these quantum correlations are also present in the nonequilibrium steady state spectra of such coherently driven dissipative quantum systems.