From Photons to Phonons and Back: A THz Optical Memory in Diamond

被引：53

作者：

England, D. G. ^{[1
]}

Bustard, P. J. ^{[1
]}

Nunn, J. ^{[1
]}

Lausten, R. ^{[1
]}

Sussman, B. J. ^{[1
]}

机构：

[1] Natl Res Council Canada, Ottawa, ON K1A 0R6, Canada

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 24期

基金：

加拿大自然科学与工程研究理事会;

关键词：

INDUCED TRANSPARENCY; ROOM-TEMPERATURE; QUANTUM; STATES; LIGHT;

D O I：

10.1103/PhysRevLett.111.243601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Optical quantum memories are vital for the scalability of future quantum technologies, enabling long-distance secure communication and local synchronization of quantum components. We demonstrate a THz-bandwidth memory for light using the optical phonon modes of a room temperature diamond. This large bandwidth makes the memory compatible with down-conversion-type photon sources. We demonstrate that four-wave mixing noise in this system is suppressed by material dispersion. The resulting noise floor is just 7 x 10(-3) photons per pulse, which establishes that the memory is capable of storing single quanta. We investigate the principle sources of noise in this system and demonstrate that high material dispersion can be used to suppress four-wave mixing noise in Lambda-type systems.

引用

页数：5

共 40 条

[1] High-NOON States by Mixing Quantum and Classical Light [J].