{ "id": "quant-ph/0504017", "version": "v1", "published": "2005-04-04T09:42:54.000Z", "updated": "2005-04-04T09:42:54.000Z", "title": "An Operator-Based Exact Treatment of Open Quantum Systems", "authors": [ "S. Nicolosi" ], "comment": "To appear on Open Systems and Information Dynamics", "categories": [ "quant-ph" ], "abstract": "\"Quantum mechanics must be regarded as open systems. On one hand, this is due to the fact that, like in classical physics, any realistic system is subjected to a coupling to an uncontrollable environment which influences it in a non-negligible way. The theory of open quantum systems thus plays a major role in many applications of quantum physics since perfect isolation of quantum system is not possible and since a complete microscopic description or control of the environment degrees of freedom is not feasible or only partially so\" [1]. Practical considerations therefore force one to seek for a simpler, effectively probabilistic description in terms of an open system. There is a close physical and mathematical connection between the evolution of an open system, the state changes induced by quantum measurements, and the classical notion of a stochastic process. The paper provides a bibliographic review of this interrelations, it shows the mathematical equivalence between markovian master equation and generalized piecewise deterministic processes [1] and it introduces the open system in an open observed environment model.", "revisions": [ { "version": "v1", "updated": "2005-04-04T09:42:54.000Z" } ], "analyses": { "keywords": [ "open quantum systems", "operator-based exact treatment", "open system", "complete microscopic description", "markovian master equation" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2005quant.ph..4017N" } } }