Non-Markovian dynamics and quantum jumps

Autor:	Jyrki Piilo, Kari Härkönen, Sabrina Maniscalco, Kalle-Antti Suominen
Rok vydání:	2010
Předmět:	Physics Open quantum system Quantum network Classical mechanics Quantum dynamics Quantum process Quantum operation Quantum algorithm Quantum information Quantum dissipation Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials
Zdroj:	Optics and Spectroscopy. 108:407-411
ISSN:	1562-6911 0030-400X
DOI:	10.1134/s0030400x10030148
Popis:	Experiments with trapped particles have demonstrated the existence of quantum jumps and the discrete nature of single-system dynamics in quantum mechanics. The concept of jumps is also a powerful tool for simulating and understanding open quantum systems. In non-Markovian systems jump probabilities can become negative due to memory effects between the system and its environment. We discuss a recently presented method that can handle both positive and negative probabilities and provides powerful insight into the dynamics of open systems with memory. The key element is a reversed quantum jump to a system state that was, in principle, already destroyed by an earlier normal jump. Instead of using artificial extensions of the system or exploiting hidden variables we take advantage of the information stored in the quantum ensemble itself.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b0fb1a45f05abb7b26e0717e784a6530 https://doi.org/10.1134/s0030400x10030148 Zobrazit plný text záznamu Plný text ve formátu PDF