Ultrafast quantum random access memory utilizing single Rydberg atoms in a Bose-Einstein condensate

K. R. Patton, U. R. Fischer · 2013 · Phys. Rev. Lett.

| 编号 QR018 | 主题 综述与物理基础 | 链接 arXiv:1307.0963 |

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。

We propose a long-lived and rapidly accessible quantum memory unit, for which the operational Hilbert space is spanned by states involving the two macroscopically occupied hyperfine levels of a miscible binary atomic Bose-Einstein condensate and the Rydberg state of a single atom. It is shown that an arbitrary qubit state, initially prepared using a flux qubit, can be rapidly transferred to and from the trapped atomic ensemble in approximately 10 ns and with a large fidelity of 97%, via an effective two-photon process using an external laser for the transition to the Rydberg level. The achievable ultrafast transfer of quantum information therefore enables a large number of storage and retrieval cycles from the highly controllable quantum optics setup of a dilute ultracold gas, even within the typically very short flux qubit lifetimes of the order of microseconds.

本站词条在引用该文献时，会以 wikilink（sources/QR018）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。