Measuring irreversible dynamics of a quantum harmonic oscillator

Giovanna Morigi, E. Solano, Berthold Georg Englert, Herbert Walther

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

5 Citas (Scopus)


We show that the unitary evolution of a harmonic oscillator coupled to a two-level system can be undone by a suitable manipulation of the two-level system—more specifically, by a quasi-instantaneous phase change. This enables us to isolate the dissipative evolution to which the oscillator may be exposed in addition. With this method we study the decoherence time of a photon mode in cavity QED, and that of the quantized harmonic motion of trapped ions. We comment on the relation to spin echoes and multipath interferometry. © 2002 The American Physical Society.
Idioma originalEspañol
PublicaciónPhysical Review A: atomic, molecular, and optical physics
EstadoPublicada - 1 ene. 2002
Publicado de forma externa

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