The exact wave function, energy eigenvalues and uncertainty relations of a lengthening pendulum
are evaluated explicitly through the use of a time-dependent dynamical invariant method. The
energy eigenvalues decrease linearly as time goes by, and th...
The exact wave function, energy eigenvalues and uncertainty relations of a lengthening pendulum
are evaluated explicitly through the use of a time-dependent dynamical invariant method. The
energy eigenvalues decrease linearly as time goes by, and the minimum value of the uncertainty is
larger than ~=2.
PACS numbers: 03.65.