Reminder: Tomorrow on Friday.
https://cmsa.fas.harvard.edu/events-archive/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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Warmly welcome Prof. Susanne Yelin!
Susanne Yelin (Harvard)
Programmable Simulations of Molecules and Materials with present-day
Reconfigurable Quantum Processors
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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