Observations of the delayed-choice quantum eraser using coherent photons
Abstract
Quantum superposition is the cornerstone of quantum mechanics, where interference fringes originate in the self-interference of a single photon via indistinguishable photon characteristics. Wheeler delayed-choice experiments have been extensively studied for the wave-particle duality over the last several decades to understand the complementarity theory of quantum mechanics. The heart of the delayed-choice quantum eraser is in the mutually exclusive quantum feature violating the cause-effect relation. Here, we experimentally demonstrate the quantum eraser using coherent photon pairs by the delayed choice of a polarizer placed out of the interferometer. Coherence solutions of the observed quantum eraser are derived from a typical Mach-Zehnder interferometer, where the violation of the cause-effect relation is due to selective measurements of basis choice.
Keywords
Cite
@article{arxiv.2202.06168,
title = {Observations of the delayed-choice quantum eraser using coherent photons},
author = {Sangbae Kim and Byoung S. Ham},
journal= {arXiv preprint arXiv:2202.06168},
year = {2023}
}
Comments
7 pages, 2 figures