The superposition shown---both Yn1n2 and Yn1n2*Yn1n2---is an equal mix of the two states n1 and n2 for the infinite square well, Yn1n2(x,t)=(1/2)-1/2 [fn1 (x,t) + fn2 (x,t)]. The wave function evolves with time according to the Time-dependent Schrodinger Equation. You may change the states by choosing n1 and n2. Time is shown in units of the revival time for the ground state wave function of a particle in an infinite square well. In other words it is the time for the wave function to undergo a phase change of 2p.
Script by Mario Belloni.
Questions by Mario Belloni.
Java applets by Wolfgang Christian.