Coherent transfer of light polarization to electron spins in a semiconductor
Autor: | Hiroshi Imamura, Y. Rikitake, Keiichi Edamatsu, Koichiro Arai, T. Kutsuwa, Hideki Shigyou, Yasuyoshi Mitsumori, Hideo Kosaka |
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Jazyk: | angličtina |
Rok vydání: | 2008 |
Předmět: | |
Zdroj: | Physical Review Letters. 100(9):096602 |
ISSN: | 0031-9007 |
Popis: | 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. Comment: 4 pages. Submitted to Physical Review Letters |
Databáze: | OpenAIRE |
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