Open quantum systems and Feynman integrals

Pavel Exner

TBD mathscidoc:1910.43024

6, 2012.12
Every part of physics offers examples of non-stability phenomena, but probably nowhere are they so plentiful and worthy of study as in the realm of quantum theory. The present volume is devoted to this problem: we shall be concerned with open quantum systems, ie those that cannot be regarded as isolated from the rest of the physical universe. It is a natural framework in which non-stationary processes can be investigated. There are two main approaches to the treatment of open systems in quantum theory. In both the system under consideration is viewed as part of a larger system, assumed to be isolated in a reasonable approximation. They are differentiated mainly by the way in which the state Hilbert space of the open system is related to that of the isolated system-either by orthogonal sum or by tensor product. Though often applicable simultaneously to the same physical situation, these approaches are complementary in a sense and are adapted to different purposes. Here we shall be concerned with the first approach, which is suitable primarily for a description of decay processes, absorption, etc. The second approach is used mostly for the treatment of various relaxation phenomena. It is comparably better examined at present; in particular, the reader may consult a monograph by EB Davies.
No keywords uploaded!
[ Download ] [ 2019-10-20 12:21:32 uploaded by Pavel_Exner ] [ 559 downloads ] [ 0 comments ]
@inproceedings{pavel2012open,
  title={Open quantum systems and Feynman integrals},
  author={Pavel Exner},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020122132130069553},
  volume={6},
  year={2012},
}
Pavel Exner. Open quantum systems and Feynman integrals. 2012. Vol. 6. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191020122132130069553.
Please log in for comment!
 
 
Contact us: office-iccm@tsinghua.edu.cn | Copyright Reserved