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Wednesday, June 12, 2019 10:00 am - 10:00 am EDT (GMT -04:00)

Untangling entanglement and chaos

Meenu Kumari

How does classical chaos affect the generation of quantum entanglement? What signatures of chaos exist at the quantum level and how can they be quantified? These questions have puzzled physicists for a couple of decades now. We answer these questions in spin systems by analytically establishing a connection between entanglement generation and a measure of delocalization of a quantum state in such systems. While delocalization is a generic feature of quantum chaotic systems, it is more nuanced in regular systems.

Thursday, July 18, 2019 2:00 pm - 2:00 pm EDT (GMT -04:00)

Hamiltonian Simulations: Methods, Applications, and Outlook

Quantum Information Seminar

Mária Kieferová
Ph.D. Graduate Student, Physics (Quantum Information)

Abstract:

One of the first applications of quantum computing was simulating the evolution of a closed system. In this talk, I will review Hamiltonian simulation techniques ranging from the earliest results for simulating Hamiltonian evolution to recent methods based on linear combination of unitaries and quantum signal processing. I will also discuss some of the open questions in Hamiltonian simulations. 

Based on arXiv:1812.09976