Journal of Physics A Mathematical and Theoretical
Symplectic transformations and quantum tomography in finite quantum systems
Apostol Vourdas, Cyril Banderier
Abstract
Quantum systems where the position and momentum are in the ring ( d is an odd integer) are considered. Symplectic transformations are studied, and the order of is calculated. Quantum tomography is also discussed. It is shown that measurements (used in the inverse Radon transform) need to be made on J 2 ( d ) lines (where J 2 ( d ) is the Jordan totient function).