Scheme for Bell state measurement in a g-factor engineered double dot

Nobuhiko Yokoshi, Hiroshi Imamura, Hideo Kosaka

Research output: Contribution to journalConference article

Abstract

We proposed a possible protocol for Bell state measurements of spin qubits in a double quantum dot (QD). Our scheme consists of Pauli spin blockade measurements and biaxial electron spin resonance. It is assumed that the two QDs here are designed so that the Landé g-factors satisfy g1 = -g2 with the use of g-factor engineering. The opposite sign of the g-factors cancel the average of the Zeeman fields on the two QDs, and enable us to swap three spin-triplet states for a spin-singlet state sequentially. We showed that it is possible to implement the full Bell state measurement by the sequential spin-to-charge conversions in the QD-based spin qubits.

Original languageEnglish
Article number112012
JournalJournal of Physics: Conference Series
Volume200
Issue numberSECTION 11
DOIs
Publication statusPublished - 2010

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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