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X-WR-CALNAME;VALUE=TEXT:Peter Love (Tufts): Non-contextual approximations, Magic, and Correlation energy
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SUMMARY:Peter Love (Tufts): Non-contextual approximations, Magic, and Correlation energy
DESCRIPTION:<p>Title: Non-contextual approximations, Magic, and Correlation energy</p><p>Abstract: 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 &nbsp;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.</p>
LOCATION:Jefferson 368
STATUS:CONFIRMED
DTSTART:20260513T190000Z
DTEND:20260513T200000Z
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