谐波驱动腔量子电动力学的高N00N输出。

A high-N00N output of harmonically driven cavity QED.

作者信息

Maleki Yusef, Zheltikov Aleksei M

机构信息

Department of Physics and Astronomy, Texas A&M University, College Station, Texas, 77843-4242, USA.

Physics Department, International Laser Center, M.V. Lomonosov Moscow State University, Moscow, 119992, Russia.

出版信息

Sci Rep. 2019 Nov 14;9(1):16780. doi: 10.1038/s41598-019-49465-7.

DOI:10.1038/s41598-019-49465-7

PMID:31727904

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6856350/

Abstract

A harmonically driven cavity QED system consisting of two cavities and a two-level qubit is shown to enable the generation of a vast class of maximally entangled states suitable for measurements with a Heisenberg-limit precision. As one of its modalities, this system can serve as a quantum beam splitter, converting an |N〉 ⊗ |0〉 input into a maximally entangled N00N state (|N〉 ⊗ |0〉 + |0〉 ⊗ |N〉)/[Formula: see text] at its output. A network of such quantum beam splitters is shown to provide a source of multimode N00N-type entanglement.

摘要

一个由两个腔和一个两能级量子比特组成的谐波驱动腔量子电动力学系统，被证明能够生成大量适用于以海森堡极限精度进行测量的最大纠缠态。作为其模态之一，该系统可作为一个量子分束器，将|N〉⊗|0〉输入转换为在其输出端的最大纠缠N00N态（|N〉⊗|0〉 + |0〉⊗|N〉）/[公式：见原文]。这样的量子分束器网络被证明可提供多模N00N型纠缠源。