Toward a test of angular-momentum coherence in a twin-atom interferometerCarlos R. de Carvalho, Ginette Jalbert, François Impens, J. Robert, Aline Medina, F. Zappa and N. V. de Castro FariaEPL, 110 5 (2015) 50001DOI: https://doi.org/10.1209/0295-5075/110/50001