Crossover from weak- to strong-coupling regime in dispersive circuit QED

I. Serban, E. Solano, F. K. Wilhelm

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

9 Citas (Scopus)


We study the decoherence of a superconducting qubit due to the dispersive coupling to a damped harmonic oscillator. We go beyond the weak qubit-oscillator coupling, which we associate with a phase Purcell effect, and enter into a strong coupling regime, with qualitatively different behavior of the dephasing rate. We identify and give a physicaly intuitive discussion of both decoherence mechanisms. Our results can be applied, with small adaptations, to a large variety of other physical systems, e.g. trapped ions and cavity QED, boosting theoretical and experimental decoherence studies. © Europhysics Letters Association.
Idioma originalEspañol
EstadoPublicada - 1 nov. 2007
Publicado de forma externa

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