Quantum metrology with cold atomic ensemblesMorgan W. Mitchell, R. J. Sewell, M. Napolitano, M. Koschorreck, B. Dubost, N. Behbood and M. KubasikEPJ Web of Conferences, 57 (2013) 03004DOI: https://doi.org/10.1051/epjconf/20135703004