HOMODYNE RECONSTRUCTION OF DENSITY-MATRIX IN FOCK-STATE BASIS - DETERMINISTIC VERSUS MAXIMUM-LIKELIHOOD APPROACH

Authors
MOGILEVTSEV D HRADIL Z PERINA J
Citation
D. Mogilevtsev et al., HOMODYNE RECONSTRUCTION OF DENSITY-MATRIX IN FOCK-STATE BASIS - DETERMINISTIC VERSUS MAXIMUM-LIKELIHOOD APPROACH, J. mod. opt., 44(11-12), 1997, pp. 2261-2269
Citations number
26
Categorie Soggetti
Optics
Journal title
J. mod. opt. → ACNP
ISSN journal
09500340
Volume
44
Issue
11-12
Year of publication
1997
Pages
2261 - 2269
Database
ISI
SICI code
0950-0340(1997)44:11-12<2261:HRODIF>2.0.ZU;2-1
Abstract
Quantum state reconstruction, consisting of mixing an unknown signal w ith the sequence of probe fields on the beam-splitter and the subseque nt counting of the statistics of the output state, is considered here. Besides the standard method based on deterministic inversion of count ed data the maximum likelihood estimation is applied. The comparison d emonstrates the possible failure of the standard reconstruction proced ure in some cases.