Comment on: "Auger decay, Spin-exchange, and their connection to   Bose-Einstein condensation of excitons in Cu_2O " by G.M. Kavoulakis, A.   Mysyrowicz (cond-mat/0001438)
  It is shown that the interconversion mechanism for the triplet excitons in Cu_2O suggested recently by G.M. Kavoulakis and A. Mysyrowicz in cond-mat/0001438 can be tested by the two-photon direct creation of the triplet excitons. 
A. B. Kuklov