DeCAF Seminar Series:

Abstract: Random quantum circuits provide a natural framework for exploring quantum many-body physics and universality in out-of-equilibrium systems. They are useful for understanding the role of entanglement and quantum information in thermalization and quantum chaos, and they constitute a basic tool for the development of quantum processors. In particular, they are central to both the quest for quantum supremacy and to the more pragmatic notion of quantum utility through quantum benchmarking. In this talk, I will give a gentle introduction to random quantum circuits and discuss the characterization of unitary and non-unitary error accumulation, using the well-known (many body) quantum fidelity.

Speaker Bio: Nadir studied at the University of Valladolid and completed a Master degree in Theoretical Physics at Universidad Complutense de Madrid. His Master thesis, on the quantum coherence of radiation produced by the Dynamical Casimir Effect, was supervised by Carlos Sabín. Nadir carried out his PhD under the supervision of Germán Sierra and Javier Rodríguez-Laguna, focusing on entanglement in inhomogeneous spin chains. He recently completed his first postdoctoral position at Instituto Superior Técnico in Lisbon, in Pedro Ribeiro's group, where he worked on the development of a theory of dissipative quantum circuits based on recent ideas from open quantum systems. He is currently a visiting professor in Departamento de Física Teórica at Universidad Autónoma de Madrid. His research interests span all topics related to many-body quantum systems and open quantum systems.