Breeding the Cat Through Superposition of Two Schrodinger Kittens Based on Coupled Waveguides
Abstract
Optical Schrodinger's cat (SC) is highly anticipated because of the potential of realizing fault-tolerant quantum computing, but the practical merit is only shown when the amplitude is larger than 2. However, such high-amplitude cats have not been prepared due to the limitations rooted in the existing method. Here, we demonstrate a principle that a large SC-like state can be generated by the superposition of two kittens in which two nearby coherent states interfere and grow to an enlarged coherent-like state. Further, we propose a scheme to breed the cat beyond the limitation in the former works with a high probability by realizing the superposition of two SCs in coupled waveguides. The principle and scheme demonstrated here provide a new perspective on understanding quantum superposition in phase space and a better solution for the efficient generation of SCs on chips.
Keywords
Cite
@article{arxiv.2407.02784,
title = {Breeding the Cat Through Superposition of Two Schrodinger Kittens Based on Coupled Waveguides},
author = {Nuo Wang and Xinchen Zhang and Qi Liu and Fengxiao Sun and Qiongyi He and Ying Gu},
journal= {arXiv preprint arXiv:2407.02784},
year = {2024}
}