Qmatter

QMatter writes software that compresses large simulation problems into smaller ones that keep the structure needed for an accurate answer, so they can run on a laptop, a supercomputer or today's quantum processors. Chief executive Alexis Ralli and chief technology officer Tim Weaving did their research at UCL on the contextual subspace variational quantum eigensolver, a method that shrinks chemistry problems by splitting a Hamiltonian into contextual and noncontextual parts. Co-authors of that work, Peter Love, Peter Coveney and William Kirby, are among its scientific advisers.