Schr\"odinger's cat state of optical parallel universes
Abstract
Parallel worlds are imaginative ideas in quantum mechanics and cosmology. The superpositions of parallel worlds are novel states of quantum gravity and have no classical correspondences generally. In this letter, we investigate the superposition or the Schr\"odinger's cat state of optical parallel worlds, which could be realized in laboratory and may shed some light on the detection of parallel universes in a real world. We propose two realizable experimental schemes, which enable to explore the mysterious `parallel universes' by a Mach-Zehnder interferometer. The first one is based on an atomic ensemble in a superposition state, which is a fat Schr\"odinger's cat state. The second one is to prepare a photon in a superposition of different paths, where each path lies in an optical parallel universe.
Keywords
Cite
@article{arxiv.2110.12438,
title = {Schr\"odinger's cat state of optical parallel universes},
author = {Yu-Qing Cui and Tian-Ming Zhao and Rong-Xin Miao and Jin-Dong Wang and Huanyang Chen},
journal= {arXiv preprint arXiv:2110.12438},
year = {2021}
}
Comments
5 gages, 5 figure, typos corrected, references added, comments welcome!