|
VIDEO LIBRARY |
Scientific session of the Steklov Mathematical Institute of RAS dedicated to the results of 2020
|
|||
|
Models of Markovian and non-Markovian open quantum system dynamics S. N. Filippov |
|||
Abstract: The papers [1,2] discuss new ways to derivation and simulation of Markovian and non-Markovian open quantum system dynamics. In [1] we develop two approaches leading to Markovian dynamics of a system interacting with a diluted gas: the first one is based on the low density theory for particles with internal degrees of freedom, the second one is based on a semiclassical collision model. We prove that in the high temperature limit the Lamb shift and the dissipator coincide in both approaches for any interaction potential between the system and a gas particle. In [2] we consider the general case on non-Markovian dynamics and propose a new method for learning an unknown system environment model by a series of projective measurements on the system. The method exploits embedding non-Markovian dynamics into a Markovian one for a system and an effective reservoir of finite dimension. The generator of Markovian embedding is inferred by the maximum likelihood estimation. This method allows one to calculate the response of a non-Markovian quantum system to an arbitrary external perturbation. References
* Zoom Meeting ID: 979 5396 3790 Related articles:
|