Giant cross-Kerr effect for propagating microwaves induced by an artificial atom.
Phys Rev Lett
; 111(5): 053601, 2013 Aug 02.
Article
en En
| MEDLINE
| ID: mdl-23952397
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.
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01-internacional
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MEDLINE
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En
Revista:
Phys Rev Lett
Año:
2013
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Article
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Suecia