[Seminar] Dr. Andreas Thomasen "Contemporary approaches to variational quantum algorithms for quantum chemistry"

Speaker

Dr. Andreas Thomasen
QunaSys

Andreas M. D. Thomasen is a research software engineer at QunaSys with wide experience in NISQ algorithm development, theoretical physics, and quantum cryptography. His current work focuses on benchmarking algorithms and developing industry applications over real quantum computing systems. Dr. Thomasen received his Ph.D. in Physics from the Okinawa Institute of Science and Technology focused on Topology in Condensed Matter. He holds a Masters in Engineering in Optics and Electronics from Aarhus University in Denmark focused on Quantum cryptography.

Title 

Contemporary approaches to variational quantum algorithms for quantum chemistry

Abstract

Abstract of Talk Variational quantum algorithms were initially proposed as enabling the first use-cases of quantum computers, namely determination of ground state properties of molecules, with the variational quantum eigensolver being the most familiar and well-known among them. There are signs that such algorithms have inherent short-comings that in the short term will render them unable to produce useful results on noisy intermediate-scale quantum (NISQ) devices due to noise and even for high-fidelity architectures may not converge due to the occurence of barren plateaus in the parameter search space. In this seminar we give an overview of these problems and discuss recent approaches to mitigating and potentially overcoming them.

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Meeting ID: 960 7638 2389