TY - JOUR
T1 - Coherent transfer of light polarization to electron spins in a semiconductor
AU - Kosaka, Hideo
AU - Shigyou, Hideki
AU - Mitsumori, Yasuyoshi
AU - Rikitake, Yoshiaki
AU - Imamura, Hiroshi
AU - Kutsuwa, Takeshi
AU - Arai, Koichiro
AU - Edamatsu, Keiichi
PY - 2008/3/7
Y1 - 2008/3/7
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevLett.100.096602
DO - 10.1103/PhysRevLett.100.096602
M3 - Article
AN - SCOPUS:40849113311
SN - 0031-9007
VL - 100
JO - Physical Review Letters
JF - Physical Review Letters
IS - 9
M1 - 096602
ER -