Single electron-photon pair creation from a single polarization-entangled photon pair

被引：10

作者：

Kuroyama, Kazuyuki ^{[1
]}

Larsson, Marcus ^{[1
]}

Matsuo, Sadashige ^{[1
]}

Fujita, Takafumi ^{[1
]}

Valentin, Sascha R. ^{[2
]}

Ludwig, Arne ^{[2
]}

Wieck, Andreas D. ^{[2
]}

Oiwa, Akira ^{[3
]}

Tarucha, Seigo ^{[1
,4
]}

机构：

[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo, Japan

[2] Ruhr Univ Bochum, Lehrstuhl Angew Festkorperphys, Bochum, Germany

[3] Osaka Univ, Inst Sci & Ind Res, Ibaraki, Osaka, Japan

[4] RIKEN, Ctr Emergent Mat Sci, Wako, Saitama, Japan

来源：

SCIENTIFIC REPORTS | 2017年 / 7卷

基金：

日本学术振兴会;

关键词：

QUANTUM-DOT SPIN; ATOM; LIGHT;

D O I：

10.1038/s41598-017-16899-w

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：

Quantum entanglement between different forms of qubits is an indication of the universality of quantum mechanics. Entanglement transfer between light and matter, especially photon and spin, has long been studied as the central concept, but it remains technically challenging for single photons and spins. In this paper, we show paired generation of a single electron in a GaAs quantum dot and a single photon from a single polarization-entangled photon pair. We measure temporal coincidence between the single photo-electron detection and the single photon detection. Considering a single photon polarization is converted to an electron spin via an optical selection rule, the present result indicates the capability of photon to spin entanglement transfer. This may be useful to explore the physics of entanglement transfer and also for applications to quantum teleportation based quantum communication.

引用

页数：8

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