Programmable multimode quantum networks

被引：140

作者：

Armstrong, Seiji ^{[1
,2
,3
]}

Morizur, Jean-Francois ^{[1
,4
]}

Janousek, Jiri ^{[1
,2
]}

Hage, Boris ^{[1
,2
]}

Treps, Nicolas ^{[4
]}

Lam, Ping Koy ^{[1
,2
]}

Bachor, Hans-A. ^{[1
]}

机构：

[1] Australian Natl Univ, Dept Quantum Sci, Australian Ctr Quantum Atom Opt, Canberra, ACT 0200, Australia

[2] Australian Natl Univ, Dept Quantum Sci, Ctr Quantum Computat & Commun Technol, Canberra, ACT 0200, Australia

[3] Univ Tokyo, Sch Engn, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[4] Univ Paris 06, CNRS, ENS, Lab Kastler Brossel, F-75252 Paris, France

来源：

NATURE COMMUNICATIONS | 2012年 / 3卷

基金：

澳大利亚研究理事会;

关键词：

ERROR-CORRECTION; ENTANGLEMENT; STATE; PHASE; MODE;

D O I：

10.1038/ncomms2033

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Entanglement between large numbers of quantum modes is the quintessential resource for future technologies such as the quantum internet. Conventionally, the generation of multimode entanglement in optics requires complex layouts of beamsplitters and phase shifters in order to transform the input modes into entangled modes. Here we report the highly versatile and efficient generation of various multimode entangled states with the ability to switch between different linear optics networks in real time. By defining our modes to be combinations of different spatial regions of one beam, we may use just one pair of multi-pixel detectors in order to measure multiple entangled modes. We programme virtual networks that are fully equivalent to the physical linear optics networks they are emulating. We present results for N = 2 up to N = 8 entangled modes here, including N = 2, 3, 4 cluster states. Our approach introduces the highly sought after attributes of flexibility and scalability to multimode entanglement.

引用

页数：8

共 31 条

[1] Experimental creation of a fully inseparable tripartite continuous-variable state [J].