Quantum random access memory

V. Giovannetti, S. Lloyd, L. Maccone · 2008 · Phys. Rev. Lett.

| 编号 QR001 | 主题 综述与物理基础 | 链接 arXiv:0708.1879 |

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。

A random access memory (RAM) uses n bits to randomly address N=2^n distinct memory cells. A quantum random access memory (qRAM) uses n qubits to address any quantum superposition of N memory cells. We present an architecture that exponentially reduces the requirements for a memory call: O(log N) switches need be thrown instead of the N used in conventional (classical or quantum) RAM designs. This yields a more robust qRAM algorithm, as it in general requires entanglement among exponentially less gates, and leads to an exponential decrease in the power needed for addressing. A quantum optical implementation is presented.

本站词条在引用该文献时，会以 wikilink（sources/QR001）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。