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
Jazyk:	angličtina
Rok vydání:	2008
Předmět:	Physics Larmor precession Quantum Physics Photon Spins Condensed matter physics General Physics and Astronomy FOS: Physical sciences Electron Quantum entanglement Qubit Quantum Physics (quant-ph) Quantum Quantum well
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
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b5892fce00a809ad736e2e10f264d29 http://hdl.handle.net/10097/53524 Zobrazit plný text záznamu