Qubit Casimir effect

TL;DR

This paper offers a novel interpretation of the Casimir effect by linking its energy to quantum entropy of vacuum fluctuations, using a 2-qubit pseudo-density matrix framework.

Contribution

It introduces a new perspective by expressing Casimir energy as quantum entropy, connecting quantum field effects with quantum information theory concepts.

Findings

Casimir energy can be represented as quantum Von Neumann entropy.

The approach links quantum inseparability to vacuum fluctuation energy.

Proposes a quantum information theoretic interpretation of the Casimir effect.

Abstract

In this letter we propose a new interpretation of the Casimir effect. Concretely, we show that the Casimir energy can be written as the quantum ``Von Neumann'' entropy associated to a 2-qubit, mixed pseudo-density matrix of the relevant quantum fluctuations. The quantum entropy we introduce draws parallels to the concept of quantum inseparability found in quantum information theory. Our results suggest that the Casimir energy is a measure of the quantum entropy of the vacuum fluctuations.