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Quantum dynamics of impurities in a one-dimensional Bose gas

Publication date2012
Abstract

Using a species-selective dipole potential, we create initially localized impurities and investigate their interactions with a majority species of bosonic atoms in a one-dimensional configuration during expansion. We find an interaction-dependent amplitude reduction of the oscillation of the impurities' size with no measurable frequency shift, and study it as a function of the interaction strength. We discuss possible theoretical interpretations of the data. We compare, in particular, with a polaronic mass shift model derived following Feynman variational approach.

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Citation (ISO format)
CATANI, J. et al. Quantum dynamics of impurities in a one-dimensional Bose gas. In: Physical review, A, Atomic, molecular, and optical physics, 2012, vol. 85, n° 2. doi: 10.1103/PhysRevA.85.023623
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ISSN of the journal1050-2947
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