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SUMMARY:VarBench: variational benchmarks for quantum many-body problems - 
 Dian Wu\, Peking University
DTSTART:20250210T143000Z
DTEND:20250210T150000Z
UID:TALK228040@talks.cam.ac.uk
CONTACT:Kang Wang
DESCRIPTION:The continued development of computational approaches to many-
 body ground-state problems in physics and chemistry calls for a consistent
  way to assess its overall progress. In this work\, we introduce a metric 
 of variational accuracy\, the V-score\, obtained from the variational ener
 gy and its variance. We provide an extensive curated dataset of variationa
 l calculations of many-body quantum systems\, identifying cases where stat
 e-of-the-art numerical approaches show limited accuracy\, and future algor
 ithms or computational platforms\, such as quantum computing\, could provi
 de improved accuracy. The V-score can be used as a metric to assess the pr
 ogress of quantum variational methods toward a quantum advantage for groun
 d-state problems\, especially in regimes where classical verifiability is 
 impossible.
LOCATION:zoom.us/j/92447982065?pwd=RkhaYkM5VTZPZ3pYSHptUXlRSkppQT09
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