Macroscopic quantum correlation in a delayed-choice quantum eraser scheme

• URL: http://arxiv.org/abs/2211.10840v1
• Date: Sun, 20 Nov 2022 01:25:43 GMT
• Title: Macroscopic quantum correlation in a delayed-choice quantum eraser scheme
• Authors: Byoung S. Ham
• Abstract summary: Coherence interpretation has been conducted for the delayed-choice quantum eraser using coherent photon pairs. Quantum entanglement is known as a unique feature of quantum mechanics, which cannot be obtained from classical physics.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Quantum entanglement is known as a unique feature of quantum mechanics, which cannot be obtained from classical physics. Recently, a coherence interpretation has been conducted for the delayed-choice quantum eraser using coherent photon pairs, where phase-locked symmetric frequency detuning between paired photons plays an essential role for selective measurement-caused nonlocal correlation. Here, a macroscopic version of the nonlocal correlation is presented using orthogonally polarized optical fields in a continuous wave quantum eraser scheme in a Mach-Zehnder interferometer (MZI). The resulting polarization projection of each MZI output fields onto a rotated polarizer satisfies the violation of the cause-effect relation. Based on this macroscopic quantum eraser, the intensity product between two projected output fields satisfies the inseparable joint-parameter relation if the intensity product is selectively measured through a low pass filter to block beating signals between them.

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