Coherent transfer of light polarization to electron spins in a semiconductor |
| |
Authors: | Kosaka Hideo Shigyou Hideki Mitsumori Yasuyoshi Rikitake Yoshiaki Imamura Hiroshi Kutsuwa Takeshi Arai Koichiro Edamatsu Keiichi |
| |
Institution: | Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Sendai 980-8577, Japan. |
| |
Abstract: | 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. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|