# Entanglement through qubit motion and the dynamical Casimir effect

## TL;DR

This paper investigates how qubit motion and the dynamical Casimir effect can generate entanglement in superconducting quantum systems, highlighting the role of photon correlations and relativistic concepts.

## Contribution

It introduces a novel analysis of entanglement generation via the DCE considering different qubit motions, connecting quantum optics with relativistic effects.

## Key findings

- Photon absorption and emission are key to entanglement.
- Entanglement can be related to the concept of simultaneity.
- The study bridges superconducting quantum technologies with relativistic quantum effects.

## Abstract

We explore the interplay between acceleration radiation and the dynamical Casimir effect (DCE) in the field of superconducting quantum technologies, analyzing the generation of entanglement between two qubits by means of the DCE in several states of qubit motion. We show that the correlated absorption and emission of photons is crucial for entanglement, which in some cases can be linked to the notion of simultaneity in special relativity.