Portal de Periódicos da CAPES

Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics

2004; Nature Portfolio; Volume: 431; Issue: 7005 Linguagem: Inglês

10.1038/nature02851

1476-4687

Andreas Wallraff, David Schuster, Alexandre Blais, Luigi Frunzio, Rutian Huang, Johannes Majer, S. Kumar, S. M. Girvin, Robert Schoelkopf,

Quantum Computing Algorithms and Architecture

Under appropriate conditions, superconducting electronic circuits behave quantum mechanically, with properties that can be designed and controlled at will. We have realized an experiment in which a superconducting two-level system, playing the role of an artificial atom, is strongly coupled to a single photon stored in an on-chip cavity. We show that the atom-photon coupling in this circuit can be made strong enough for coherent effects to dominate over dissipation, even in a solid state environment. This new regime of matter light interaction in a circuit can be exploited for quantum information processing and quantum communication. It may also lead to new approaches for single photon generation and detection.