@article{Nigg2012, title = "{Can different quantum state vectors correspond to the same physical state? An experimental test}", author = "Nigg, Daniel and Monz, Thomas and Schindler, Philipp and Martinez, Esteban A and Chwalla, Michael and Hennrich, Markus and Blatt, Rainer and Pusey, Matthew F and Rudolph, Terry and Barrett, Jonathan", year = "2012", month = "nov", number = "2", pages = "1--7", url = "http://arxiv.org/abs/1211.0942", }