Quantum description of light-pulse scattering on a single atom in waveguides

Peter Domokos, Peter Horak, Helmut Ritsch

Research output: Contribution to journalArticle

9 Citations (Scopus)


We present a time-dependent quantum calculation of the scattering of a few-photon pulse on a single atom. The photon wave packet is assumed to propagate in a transversely strongly confined geometry, which ensures strong atom-light coupling and allows a quasi-one-dimensional treatment. The amplitude and phase of the transmitted, reflected, and transversely scattered part of the wave packet strongly depend on the pulse length (bandwidth) and energy. For a transverse mode size of the order of [Formula Presented] we find nonlinear behavior for a few photons already, or even for a single photon. In a second step we study the collision of two such wave packets at the atomic site and find striking differences between the Fock state and coherent state wave packets of the same photon number.

Original languageEnglish
Number of pages1
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
Publication statusPublished - Jan 1 2002

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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