Self-calibrating tomography for angular Schmidt modes in spontaneous parametric down-conversion
Stanislav S. Straupe, D. P. Ivanov, Alexander A. Kalinkin, I. B. Bobrov, S. P. Kulik, Dmitri S. Mogilevtsev · Physical Review A · 2013
We report an experimental self-calibrating tomography scheme for entanglement characterization in high-dimensional quantum systems using Schmidt decomposition techniques. The self-tomography technique based on maximal likelihood estimation was developed for characterizing nonideal measurements in the Schmidt basis, allowing us to infer both Schmidt eigenvalues and detecting efficiencies.