Estimation of spin-spin interaction by weak measurement scheme

Yutaka Shikano, Shu Tanaka

Research output: Contribution to journalArticle

9 Citations (Scopus)


Precisely knowing an interaction Hamiltonian is crucial to realize quantum information tasks, especially to experimentally demonstrate a quantum computer and a quantum memory. We propose a scheme to experimentally evaluate the spin-spin interaction for a two-qubit system by the weak measurement technique initiated by Yakir Aharonov and his colleagues. Furthermore, we numerically confirm our proposed scheme in a specific system of a nitrogen vacancy center in diamond. This means that the weak measurement can also be taken as a concrete example of the quantum process tomography.

Original languageEnglish
Article number40002
Issue number4
Publication statusPublished - 2011 Nov

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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