Iterative algorithm for reconstruction of entangled states
Abstract
An iterative algorithm for the reconstruction of an unknown quantum state from the results of incompatible measurements is proposed. It consists of an expectation-maximization step followed by a unitary transformation of the eigenbasis of the density matrix. The procedure has been applied to the reconstruction of the entangled pair of photons.
- Publication:
-
Physical Review A
- Pub Date:
- April 2001
- DOI:
- arXiv:
- arXiv:quant-ph/0009093
- Bibcode:
- 2001PhRvA..63d0303R
- Keywords:
-
- 03.67.-a;
- Quantum information;
- Quantum Physics
- E-Print:
- 4 pages, no figures, some formulations changed, a minor mistake corrected