Practical quantum repeaters with parametric down-conversion sources

被引：32

作者：

Krovi, Hari ^{[1
]}

Guha, Saikat ^{[1
]}

Dutton, Zachary ^{[1
]}

Slater, Joshua A. ^{[2
,3
]}

Simon, Christoph ^{[2
]}

Tittel, Wolfgang ^{[2
]}

机构：

[1] Raytheon BBN Technol, Quantum Informat Proc Grp, 10 Moulton St, Cambridge, MA 02138 USA

[2] Univ Calgary, Inst Quantum Sci & Technol, Dept Phys & Astron, Calgary, AB T2N 1N4, Canada

[3] Univ Vienna, Fac Phys, Vienna Ctr Quantum Sci & Technol VCQ, Waehringer Guertel 18, A-1090 Vienna, Austria

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2016年 / 122卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ATOMIC ENSEMBLES; ENTANGLEMENT; PHOTON; TELEPORTATION;

D O I：

10.1007/s00340-015-6297-4

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Conventional wisdom suggests that realistic quantum repeaters will require quasi-deterministic sources of entangled photon pairs. In contrast, we here study a quantum repeater architecture that uses simple parametric down-conversion sources, as well as frequency-multiplexed multimode quantum memories and photon-number-resolving detectors. We show that this approach can significantly extend quantum communication distances compared to direct transmission. This shows that important trade-offs are possible between the different components of quantum repeater architectures.

引用

页数：8

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