Coherent transfer of light polarization to electron spins in a semiconductor
Quantum Physics
2009-11-13 v1
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
Cite
@article{arxiv.0710.3847,
title = {Coherent transfer of light polarization to electron spins in a semiconductor},
author = {Hideo Kosaka and Hideki Shigyou and Yasuyoshi Mitsumori and Yoshiaki Rikitake and Hiroshi Imamura and Takeshi Kutsuwa and Koichiro Arai and Keiichi Edamatsu},
journal= {arXiv preprint arXiv:0710.3847},
year = {2009}
}
Comments
4 pages. Submitted to Physical Review Letters