Introduction to open quantum systems

<!--HTML--><p>The theory of open quantum systems aims to develop a general framework to analyse the dynamical behaviour of physical systems by removing the<br>environmental degrees of freedom. If the response of the environment is<br>Markovian, the dynamics can be described through the Lindblad Master<br>equation. In the first part of the talk, I will derive this equation with<br>a particular focus on the approximations. In the second part, I will<br>discuss the importance of integrability in the contexts of Open quantum<br>systems and some of the novel results discussed in PRL 126.24 (2021):<br>240403</p>