Robust self-testing of the three-qubit W state
Xingyao Wu, Yu Ping Cai, Tzyh Haur Yang, Huy Nguyên Lê, Jean-Daniel Bancal, Valerio Scarani · Physical Review A · 2014
A method to self-test multipartite quantum states is constructed and shows that it is possible to characterize quantum states based only on observed statistics and without knowing any detail of the inner mechanism or the physical dimension of the Hilbert space of the system.