Evaluation of g-factor by quantum transport measurement for photon-spin quantum state transfer

K. Arai, T. Kutsuwa, H. Kinjo, K. Ono, Hideo Kosaka, K. Edamatsu

Research output: Contribution to journalConference article

Abstract

One of key devices for quantum repeater system is a quantum interface that enables quantum state transfer (QST) from a messenger photon qubit to a processor electron spin qubit. To realize QST, it is necessary to fabricate a quantum dot, whose electron g-factor should be tuned to zero and to measure the local g-factor of single electron precisely without disturbing the state. We have measured the random telegraph signals (RTS) to investigate a g-factor of the quantum dot which is naturally created by a defect in the vicinity of source-drain channel. We have succeeded to detect single electron charge trapping and releasing events electrically and to measure magnetic-field dependent Zeeman shift.

Original languageEnglish
Pages (from-to)4334-4337
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume3
Issue number12
DOIs
Publication statusPublished - 2006 Dec 1
Event4th International Conference on Physics and Applications of Spin-related Phenomena in Semiconductors, PASPS-IV - Sendai, Japan
Duration: 2006 Aug 152006 Aug 18

ASJC Scopus subject areas

  • Condensed Matter Physics

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