AI Article Synopsis
- The study explores how light-assisted collisions impact the coherence of momentum states in Bose-Einstein condensates, focusing on how superradiant Rayleigh scattering acts as a measure for this coherence.
- A key finding reveals significant asymmetry in coherence loss rates, highlighting that condensates exposed to blue detuned light experience higher rates of coherence loss than earlier models predicted.
- The researchers propose a simplified model to explain their findings and suggest new experimental methods to investigate interactions between light and matter in these systems.
Article Abstract
We investigate experimentally the effects of light assisted collisions on the coherence between momentum states in Bose-Einstein condensates. The onset of superradiant Rayleigh scattering serves as a sensitive monitor for matter-wave coherence. A subtle interplay of binary and collective effects leads to a profound asymmetry between the two sides of the atomic resonance and provides far bigger coherence loss rates for a condensate bathed in blue detuned light than previously estimated. We present a simplified quantitative model containing the essential physics to explain our experimental data and point at a new experimental route to study strongly coupled light matter systems.
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| http://dx.doi.org/10.1103/PhysRevLett.108.090401 | DOI Listing |
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