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Quantum dynamics of impurities in a one-dimensional Bose gas

Authors
Catani, J.
Lamporesi, G.
Naik, D.
Gring, M.
Inguscio, M.
Minardi, F.
Published in Physical Review. A. 2012, vol. 85, no. 2
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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CATANI, J. et al. Quantum dynamics of impurities in a one-dimensional Bose gas. In: Physical Review. A, 2012, vol. 85, n° 2. https://archive-ouverte.unige.ch/unige:35940

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Deposited on : 2014-04-22

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