Polarization transfer from photon to electron spin in g factor engineered quantum wells

H. Kosaka; Y. Mitsumori; Y. Rikitake; H. Imamura

doi:10.1063/1.2709966

Polarization transfer from photon to electron spin in g factor engineered quantum wells

H. Kosaka, Y. Mitsumori, Y. Rikitake, H. Imamura

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

The authors demonstrate polarization transfer from a photon to an electron spin intermediated by a light-hole exciton in a GaAsAlGaAs quantum well, which has an engineered electron g factor of less than 0.01 for an in-plane magnetic field. Negative spin polarization was clearly observed at the selective excitation of the light-hole exciton from two-color time-resolved Kerr rotation. This demonstration is a necessary step towards demonstrating coherence transfer from a photon to an electron spin, which is necessary for building a quantum repeater used for long distance quantum communications.

Original language	English
Article number	113511
Journal	Applied Physics Letters
Volume	90
Issue number	11
DOIs	https://doi.org/10.1063/1.2709966
Publication status	Published - 2007
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2709966

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title = "Polarization transfer from photon to electron spin in g factor engineered quantum wells",

abstract = "The authors demonstrate polarization transfer from a photon to an electron spin intermediated by a light-hole exciton in a GaAsAlGaAs quantum well, which has an engineered electron g factor of less than 0.01 for an in-plane magnetic field. Negative spin polarization was clearly observed at the selective excitation of the light-hole exciton from two-color time-resolved Kerr rotation. This demonstration is a necessary step towards demonstrating coherence transfer from a photon to an electron spin, which is necessary for building a quantum repeater used for long distance quantum communications.",

author = "H. Kosaka and Y. Mitsumori and Y. Rikitake and H. Imamura",

note = "Funding Information: The authors express their sincere gratitude to K. Edamatsu and T. Takagahara for their valuable technical advice and discussions. This work was supported by CREST-JST, ERATO-JST, and SCOPE. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

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journal = "Applied Physics Letters",

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T1 - Polarization transfer from photon to electron spin in g factor engineered quantum wells

AU - Kosaka, H.

AU - Mitsumori, Y.

AU - Rikitake, Y.

AU - Imamura, H.

N1 - Funding Information: The authors express their sincere gratitude to K. Edamatsu and T. Takagahara for their valuable technical advice and discussions. This work was supported by CREST-JST, ERATO-JST, and SCOPE. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2007

Y1 - 2007

N2 - The authors demonstrate polarization transfer from a photon to an electron spin intermediated by a light-hole exciton in a GaAsAlGaAs quantum well, which has an engineered electron g factor of less than 0.01 for an in-plane magnetic field. Negative spin polarization was clearly observed at the selective excitation of the light-hole exciton from two-color time-resolved Kerr rotation. This demonstration is a necessary step towards demonstrating coherence transfer from a photon to an electron spin, which is necessary for building a quantum repeater used for long distance quantum communications.

AB - The authors demonstrate polarization transfer from a photon to an electron spin intermediated by a light-hole exciton in a GaAsAlGaAs quantum well, which has an engineered electron g factor of less than 0.01 for an in-plane magnetic field. Negative spin polarization was clearly observed at the selective excitation of the light-hole exciton from two-color time-resolved Kerr rotation. This demonstration is a necessary step towards demonstrating coherence transfer from a photon to an electron spin, which is necessary for building a quantum repeater used for long distance quantum communications.

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Polarization transfer from photon to electron spin in g factor engineered quantum wells

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