Trapping and cooling of ions for quantum information processing

Kazuhiro Hayasaka, Satoshi Uetake, Hidetsuka Imajo

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


In quantum networks quantum information is processed by exchanging quantum states between physical systems. We have studied trapping and cooling of ions for quantum information processing to build a prototype of the quantum network. We have found 43Ca + as the best candidate for the qubit in the quantum network. The schemes for quantum gate operations and for quantum state transfer with the ion species are discussed. We have developed a ring ion trap and a light source consisting of violet diode lasers for realizing the schemes. We have achieved deterministic coupling of a single 40Ca + to the optical field in a cavity.

Original languageEnglish
Pages (from-to)59-68
Number of pages10
JournalJournal of the National Institute of Information and Communications Technology
Issue number1-2
Publication statusPublished - Mar 2004
Externally publishedYes


  • Cavity QED
  • Ion trap
  • Quantum network
  • Quantum state transfer
  • Violet diode laser

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering


Dive into the research topics of 'Trapping and cooling of ions for quantum information processing'. Together they form a unique fingerprint.

Cite this