title: Coherent transfer of light polarization to electron spins in a semiconductor.
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.
authors: Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Sendai 980-8577, Japan.
authors: Hideo
authors: H
authors: Kosaka
authors: Hideki
authors: H
authors: Shigyou
authors: Yasuyoshi
authors: Y
authors: Mitsumori
authors: Yoshiaki
authors: Y
authors: Rikitake
authors: Hiroshi
authors: H
authors: Imamura
authors: Takeshi
authors: T
authors: Kutsuwa
authors: Koichiro
authors: K
authors: Arai
authors: Keiichi
authors: K
authors: Edamatsu