Yellow Vector â Ki no Taji Gen Shikousei- (Yellow Vectorï¼Âé»Âã®å¤Â次éÂÂæÂÂÃ¥ÂÂæ§-), also known as Quantum Mechanics Rainbow V: Yellow Vector, is the tenth solo album from Japanese musician Daisuke Asakura released on November 30, 2004. The album is the fifth in the Quantum Mechanics Rainbow series. The concept of this series is "one album for every rainbow color and a different Quantum Mechanics term". Track 7 is dedicated to D.A.N.K, a boy band Asakura formed in a futile attempt to copy the popularity of Japanese music company JohnnyâÂÂs Entertainment Company. Tracks 1 and 8 make references to physicist Erwin Schrödinger and mathematician Pierre-Simon Laplace, respectively. Track 5 contains guest vocals from Mayumi Fujita, who has performed vocals on several of AsakuraâÂÂs Quantum Mechanics Rainbow albums.