TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysLectNotes.68
TI  - Introduction to the theory of open quantum systems
PY  - 2023/04/18
UR  - https://www.scipost.org/SciPostPhysLectNotes.68
JF  - SciPost Physics Lecture Notes
JA  - SciPost Phys. Lect. Notes
SP  - 68
A1  - Szańkowski, Piotr
AB  - This manuscript is an edited and refined version of the lecture script for a one-semester graduate course given originally at the PhD school in the Institute of Physics of Polish Academy of Sciences in the Spring/Summer semester of 2022. The course expects from the student only a basic knowledge on graduate-level quantum mechanics. The script itself is largely self-contained and could be used as a textbook on the topic of open quantum systems. The program of this course is based on a novel approach to the description of the open system dynamics: It is showed how the environmental degrees of freedom coupled to the system can be represented by a multi-component quasi-stochastic process. Using this representation one constructs the super-quasi-cumulant (or super-qumulant) expansion for the system's dynamical map-a parametrization that naturally lends itself for the development of a robust and practical perturbation theory. Thus, even an experienced researcher might find this manuscript of some interest.
ER  -

@Article{10.21468/SciPostPhysLectNotes.68,
	title={{Introduction to the theory of open quantum systems}},
	author={Piotr Szańkowski},
	journal={SciPost Phys. Lect. Notes},
	pages={68},
	year={2023},
	publisher={SciPost},
	doi={10.21468/SciPostPhysLectNotes.68},
	url={https://scipost.org/10.21468/SciPostPhysLectNotes.68},
}