Coherent spin state transfer from light to electrons in a semiconductor

被引：0

作者：

Kosaka, H. ^{[1
,2
]}

Shigyou, H. ^{[1
]}

Mitsumori, Y. ^{[1
,2
]}

Rikitake, Y. ^{[2
,3
]}

Imamura, H. ^{[2
,3
]}

Kutsuwa, T. ^{[2
]}

Edamatsu, K. ^{[1
]}

机构：

[1] Tohoku Univ, Elect Commun Res Inst, Sendai, Miyagi 9808577, Japan

[2] Japan Sci & Technol Agcy JST, CREST, Kawaguchi, Saitama 3320012, Japan

[3] Sendai Natl Coll Technol, Dept Informat Engn, Sendai, Miyagi 9893128, Japan

来源：

QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING (QCMC) | 2009年 / 1110卷

关键词：

photon; polarization; electron; spin; coherence; qubit; QUANTUM BEATS; MEMORY;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate that the superposition of light polarization states is coherently transferred to electron spins in a semiconductor quantum well. By using time-resolved Kerr rotation we observe the initial phase of Larmor precession of electron spins whose coherence is transferred from light. To break the electron-hole spin entanglement, we utilized the big discrepancy between the transverse g-factors of electrons and light holes. The result encourages us to make a quantum media converter between flying photon qubits and stationary electron spin qubits in semiconductors.

引用

页码：245 / +

页数：2

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