Entangled photonic qudits encoded in transverse spatial modes were characterized by using quantum state tomography. A technique for using this system to implement the best known bit commitment (BC) protocol was analyzed. It was observed that extremely high purities and fidelities were obtained for a range of single qubit states. It was found that the requirements on the initial two-qutrit entangled state were extremely stringent.
|Translated title of the contribution||Measuring entangled qutrits and their use for quantum bit commitment|
|Pages (from-to)||053601-1 - 053601-4|
|Number of pages||4|
|Journal||Physical Review Letters|
|Publication status||Published - Jul 2004|