caa a22 4500 469035129 CHVBK 20180323132754.0 cr unu---uuuuu 170328e19921101xx s 000 0 eng 10.1007/BF01083524 doi (NATIONALLICENCE)springer-10.1007/BF01083524 Menskii M. aut The difficulties in the mathematical definition of path integrals are overcome in the theory of continuous quantum measurements [Elektronische Daten] [M. Menskii] Any real physical process takes place in an external (with respect to the investigated system) medium whose state reflects in one form or another information about the behavior of the system. Therefore, a real model of any process must include a description of the measurement process. This has the consequence that the dynamics of a real system contains both quantum and classical elements. Mathematically, a quantum system subject to continuous measurement can be described by a restricted path integral. The Feynman path integral that is usually employed is an idealization that is not correct in all cases. In a real situation in which the path integral is restricted, the difficulties associated with the mathematical definition of the path integral disappear. These difficulties are in fact a consequence of an unphysical idealization — the neglect of the fact that some information about the behavior of the quantum system remains in classical form in the environment. Plenum Publishing Corporation, 1992 Theoretical and Mathematical Physics Kluwer Academic Publishers-Plenum Publishers 93/2(1992-11-01), 1262-1267 0040-5779 93:2<1262 1992 93 11232 https://doi.org/10.1007/BF01083524 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01083524 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Menskii M. aut NATIONALLICENCE 773 0- Theoretical and Mathematical Physics Kluwer Academic Publishers-Plenum Publishers 93/2(1992-11-01), 1262-1267 0040-5779 93:2<1262 1992 93 11232 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer