Measurement of the Aharonov-Casher geometric phase with a separated-arm atom interferometerJonathan Gillot, Steven Lepoutre, Alexandre Gauguet, Jacques Vigué and Matthias BüchnerEur. Phys. J. D, 68 6 (2014) 168DOI: https://doi.org/10.1140/epjd/e2014-50277-1