On EPR-type Entanglement in the Experiments of Scully et Al. II. Insight in the Real Random Delayed-choice Erasure Experiment

TL;DR

This paper provides a quantum-mechanical analysis of a delayed-choice erasure experiment, revealing it as an example of EPR-type disentanglement and relating it to micromaser experiments, using the RRUES approach.

Contribution

It introduces a novel RRUES approach to analyze the experiment, offering new insights into EPR-type entanglement and its experimental realization.

Findings

The experiment is an EPR-type disentanglement process.

It involves simultaneous incompatible measurements via random choice.

The experiment is closely related to micromaser phenomena.

Abstract

It was pointed out in the first part of this study that EPR-type entanglement is defined by the possibility of performing any of two mutually incompatible distant, i. e.,direct-interaction-free, measurements. They go together under the term 'EPR-type disentanglement'. In this second part, quantum-mechanical insight is gained in the real random delayed-choice erasure experiment of Kim et al. [Kim et al.: Phys. Rev. Lett. 84, 1-5 (2000)] by a relative-reality-of- unitarily-evolving-state (RRUES) approach (explained in the first part). Finally, it is shown that this remarkable experiment, which performs, by random choice, two incompatible measurements at the same time, is actually an EPR-type disentanglement experiment, closely related to the micromaser experiment discussed in the first part.