On Symmetric Sets of Projectors for Reconstruction of a Density Matrix
| dc.creator | Vlasov, Alexander Yu. | |
| dc.date | 2003-02-10 | |
| dc.date.accessioned | 2026-07-07T06:06:06Z | |
| dc.date.available | 2026-07-07T06:06:06Z | |
| dc.description | In this work are presented sets of projectors for reconstruction of a density matrix for an arbitrary mixed state of a quantum system with the finite-dimensional Hilbert space. It was discussed earlier [quant-ph/0104126] a construction with (2n-1)n projectors for the dimension n. For n=2 it is a set with six projectors associated with eigenvectors of three Pauli matrices, but for n>2 the construction produces not such a `regular' set. In this paper are revisited some results of previous work [quant-ph/0104126] and discussed another, more symmetric construction with the Weyl matrix pair (as the generalization of Pauli matrices). In the particular case of prime n it is the mutually unbiased set with (n+1)n projectors. In appendix is shown an example of application of complete sets for discussions about separability and random robustness. | |
| dc.description | LaTeXe, 6 pages, 2 col | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0302064 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0302064 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/90859 | |
| dc.subject | Quantum Physics | |
| dc.title | On Symmetric Sets of Projectors for Reconstruction of a Density Matrix | |
| dc.type | text |