Warmly welcome Prof. Susanne Yelin!
https://cmsa.fas.harvard.edu/event_category/quantum-matter-seminar/
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Time: Friday 10:30 - 12 am ET, Feb 16
Location: Harvard CMSA G10
Zoom:
https://harvard.zoom.us/j/977347126
Password: cmsa
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Susanne Yelin (Harvard)
Title: Programmable Simulations of Molecules and Materials with present-day
Reconfigurable Quantum Processors
Abstract: Simulations of quantum chemistry and quantum materials are
believed to be among the most important potential applications of quantum
information processors, but realizing practical quantum advantage for such
problems is challenging. We introduce a simulation framework for strongly
correlated quantum systems that can be represented by model spin
Hamiltonians. Our approach leverages reconfigurable qubit architectures to
programmably simulate real-time dynamics and introduces an algorithm for
extracting chemically relevant spectral properties via classical
co-processing of quantum measurement results. We develop a digital-analog
simulation toolbox for efficient Hamiltonian time evolution utilizing
digital Floquet engineering and hardware-optimized multi-qubit operations
to accurately realize complex spin-spin interactions, and as an example
present an implementation proposal based on Rydberg atom arrays. Then, we
show how detailed spectral and other relevant chemical information can be
extracted from these dynamics through snapshot measurements and
single-ancilla control, enabling the evaluation of excitation energies and
finite-temperature susceptibilities from a single-dataset. To illustrate
the approach, we show how this method can be used to compute key properties
of a polynuclear transition-metal catalyst and 2D magnetic materials.
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