Cirac, J. Ignacio Theory, Max Planck Institute of Quantum Optics, Max Planck Society;
Renner, R., & Cirac, J. I. (2009). de Finetti Representation Theorem for Infinite-Dimensional Quantum Systems and Applications to Quantum Cryptography. Physical Review Letters, 102(11): 110504. doi:10.1103/PhysRevLett.102.110504.