arXiv:2311.08420

On the Preservation and Manifestation of Quantum Entanglement

Jianhao M. Yang

Published Nov 10, 2023• 0 citations

Abstract

Bell experiments have confirmed that quantum entanglement is an inseparable correlation but there is no faster-than-light influence between two entangled particles when a local measurement is performed. However, how such an inseparable correlation is maintained and manifested when the two entangled particle are space-like separated is still not well understood. The recently proposed extended least action principle for quantum mechanics brings new insights to this question. By applying this principle, we show here that even though the inseparable correlation may be initially created by previous physical interaction between the two particles, the preservation and manifestation of such inseparable correlation are achieved through extremizing an information metric that measures the additional observable information of the bipartite system due to vacuum fluctuations. This is physically realized even though there is no further interaction when the two particles move apart, and the underlying vacuum fluctuations are local. In other words, the propagation of inseparable correlation in quantum theory is realized by an information requirement and through a local mechanism. An example of two entangled free particles described by Gaussian wave packets is provided to illustrate these results.

DOI: 10.48550/arxiv.2311.08420

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