Non-Gaussian and Gottesman-Kitaev-Preskill state preparation by photon catalysis

Miller Eaton · Rajveer Nehra · Olivier Pfister · 2019 · New Journal of Physics 21, 113034

| 编号 QCV017 | 主题 连续变量与玻色子算术 | 链接 arXiv:1903.01925 |

摘要

摘要保留原文（英文）

摘要取自 arXiv / 出版方元数据，未作翻译，以保证与原文一致。

Continuous-variable quantum-computing (CVQC) is the most scalable implementation of QC to date but requires non-Gaussian resources to allow exponential speedup and quantum correction, using error encoding such as Gottesman-Kitaev-Preskill (GKP) states. However, GKP state generation is still an experimental challenge. We show theoretically that photon catalysis, the interference of coherent states with single-photon states followed by photon-number-resolved detection, is a powerful enabler for non-Gaussian quantum state engineering such as exactly displaced single-photon states and $M$-symmetric superpositions of squeezed vacuum (SSV), including squeezed cat states ($M=2$). By including photon-counting based state breeding, we demonstrate the potential to enlarge SSV states and produce GKP states.

本站词条在引用该文献时，会以 wikilink（sources/QCV017）链接到本页；右侧「反向链接」面板自动列出所有引用它的词条。