Geometric potentials in quantum optics: A semi-classical interpretationM. Cheneau, S. P. Rath, T. Yefsah, K. J. Günter, G. Juzeliūnas and J. DalibardEPL, 83 6 (2008) 60001DOI: https://doi.org/10.1209/0295-5075/83/60001