Giant cross-kerr effect for propagating microwaves induced by an artificial atom

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Anton F. Kockum
  • Tauno Palomaki
  • Thomas M. Stace
  • Bixuan Fan
  • Lars Tornberg
  • Sankar R. Sathyamoorthy
  • Göran Johansson
  • Per Delsing
  • C. M. Wilson

Detail(s)

Original languageEnglish
Article number053601
Journal / PublicationPhysical Review Letters
Volume111
Issue number5
Publication statusPublished - 2 Aug 2013
Externally publishedYes

Abstract

We investigate the effective interaction between two microwave fields, mediated by a transmon-type superconducting artificial atom which is strongly coupled to a coplanar transmission line. The interaction between the fields and atom produces an effective cross-Kerr coupling. We demonstrate average cross-Kerr phase shifts of up to 20 degrees per photon with both coherent microwave fields at the single-photon level. Our results provide an important step toward quantum applications with propagating microwave photons. © 2013 American Physical Society.

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Citation Format(s)

Giant cross-kerr effect for propagating microwaves induced by an artificial atom. / Hoi, Io-Chun; Kockum, Anton F.; Palomaki, Tauno et al.
In: Physical Review Letters, Vol. 111, No. 5, 053601, 02.08.2013.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review