圏論と量子力学の関係を勉強するのに、bob coeckeのpaperintroducing categories to the practicing physicist http://web.comlab.ox.ac.uk/oucl/work/bob.coecke/Cats.pdfKindergarten Quantum Mechanics(幼稚園児でも分かる量子力学) http://web.comlab.ox…