Media type: E-Article Title: Nondemolition observation of a free quantum particle Contributor: Belavkin, V. P.; Staszewski, P. Published: American Physical Society (APS), 1992 Published in: Physical Review A, 45 (1992) 3, Seite 1347-1356 Language: English DOI: 10.1103/physreva.45.1347 ISSN: 1050-2947; 1094-1622 Keywords: Atomic and Molecular Physics, and Optics Origination: Footnote: