Initialization and logic gate operations of nuclear spin qubits using a submicron scale resistively-detected NMR device

T. Ota, G. Yusa, N. Kumada, S. Miyashita, T. Fujisawa, Y. Hirayama

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

We demonstrate initialization of nuclear spin qubits using a resistively-detected nuclear magnetic resonance (NMR) device. In our device, nuclear spins are dynamically polarized in a sub-micron scale region defined by split gates. The population of each nuclear spin state is estimated from a resistively-detected NMR spectrum combined with numerical analysis. By applying radio frequency pulses to the polarized nuclear spins, we create two-qubit effective pure states, which is a crucial step toward NMR quantum computation. We also demonstrate simple logic gate operations such as controlled-NOT and SWAP gates in this two-qubit system. The obtained spectra are consistent with numerically calculated ones.

Original languageEnglish
Pages (from-to)306-309
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume5
Issue number1
DOIs
Publication statusPublished - 2008 Jun 30
Event15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors, HCIS15 - Tokyo, Japan
Duration: 2007 Jul 232007 Jul 27

ASJC Scopus subject areas

  • Condensed Matter Physics

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