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DTSTART;TZID=America/New_York:20260513T150000
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DTSTAMP:20260513T185944
CREATED:20260507T131851Z
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UID:10003170-1778684400-1778688000@www.math.harvard.edu
SUMMARY:Non-contextual approximations\, Magic\, and Correlation energy
DESCRIPTION:What distinguishes quantum from classical computation? Contextuality\, entanglement and more recently magic are leading measures of nonclassicality. I will describe non-contextual Hamiltonians\, which arise from a generalization of the Kochen-specker paradox and Peres-Mermin square. I will give various properties of their eigenspaces and define contextual subspace methods that allow any Hamiltonian to be treated as a sum of contextual and non-contextual parts. Recent interest in the stabilizer Renyi entropy as a measure of non-stabilizerness motivates the question of how “magical” are contextual subspace methods? I will describe recent work evaluating magic in contextual subspaces for electronic structure problems\, and connecting magic and correlation energy in these subspaces. \nIn-person only\, to be posted after the talk on https://www.youtube.com/@mathematicalpicturelanguag2715/videos
URL:https://www.math.harvard.edu/event/non-contextual-approximations-magic-and-correlation-energy/
LOCATION:Jefferson Lab 368\, 17 Oxford St\, Cambridge\, MA\, 02138\, United States
CATEGORIES:MATHEMATICAL PICTURE LANGUAGE
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