REPEATED QUANTUM-NONDEMOLITION MEASUREMENTS OF CONTINUOUS OPTICAL WAVES

Authors
BRUCKMEIER R HANSEN H SCHILLER S
Citation
R. Bruckmeier et al., REPEATED QUANTUM-NONDEMOLITION MEASUREMENTS OF CONTINUOUS OPTICAL WAVES, Physical review letters, 79(8), 1997, pp. 1463-1466
Citations number
24
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
79
Issue
8
Year of publication
1997
Pages
1463 - 1466
Database
ISI
SICI code
0031-9007(1997)79:8<1463:RQMOCO>2.0.ZU;2-F
Abstract
Repeated quantum nondemolition (QND) measurements for continuous optic al waves were performed by combining a degenerate optical parametric a mplifier and a squeezed-light beam splitter. Two-step quantum state pr eparation and three-beam entanglement of the individually squeezed out put beams were demonstrated. The experiment is analyzed using a set of generalized criteria for nonideal individual and repeated QND measure ments. The system was operated fully stabilized for up to 36 hours.