Precision Tests Find No Violation of Bose Statistics

The symmetrization postulate of quantum mechanics asserts that the multiparticle wavefunction for any collection of identical particles must be either wholly symmetric or wholly antisymmetric under the exchange of labels between any two particles. In nonrelativistic quantum mechanics, this postulate is a somewhat ad hoc assumption tacked onto the theory; wholly symmetric or antisymmetric wave functions are not the only ways of preserving the indistinguishability of identical particles.