Measuring irreversible dynamics of a quantum harmonic oscillator

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

Measuring irreversible dynamics of a quantum harmonic oscillator

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

Max Planck Institute of Quantum Optics
Pontificia Universidad Católica del Perú

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

6 Citas (Scopus)

Resumen

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 original	Español
Publicación	Physical Review A: atomic, molecular, and optical physics
Volumen	65
Estado	Publicada - 1 ene. 2002
Publicado de forma externa	Sí

Citar esto

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AU - Englert, Berthold Georg

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N2 - 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.

AB - 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.

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SN - 2469-9926

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JO - Physical Review A: atomic, molecular, and optical physics

JF - Physical Review A: atomic, molecular, and optical physics

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