28 September 2020 to 2 October 2020
Online event
Europe/Rome timezone

Tutorial lecture

Satellite event: Tutorial lecture by Prof. Laleh Memarzadeh

Title: Structure of quantm channels

Abstract: One of the most promising tasks of quantum information is establishment of secure and reliable quantum communication channels over distant nodes. Beside theoretical success in formalizing the role of quantum features of systems for communication, current technological progress supports practical implementation of communication protocols. However, the role of quantum channels in quantum information science and technology is not restricted to communication protocols. The most general form of evolution of quantum systems is described by a quantum channel or a completely positive trace preserving (CPTP) map. Analyzing the mathematical structure of the space of CPTP maps, not only deepens our understanding on the nature of quantum evolution, but also plays an important role in implementation of quantum information tasks. In this tutorial, after a short review on the role of quantum channels in communication, we review the convex structure of quantum channels as well as divisibility properties of quantum channels. We will discuss how such an abstract knowledge leads to practical applications such as quantum simulation.




Laleh Memarzadeh is an assistant professor at the Sharif Universiy of Technology in Tehran, where she has taught quantum mechanics, mathematical physics, open quantum systems, and group theory. Her research interests are quantum channels, open quantum systems, topological quantum computation, quantum phase transitions, entanglement theory. She is also a member of the editorial board of Physics Letters A.