Show that the time-dependent Schrödinger equation preserves the normalization of the wavefunction, i.e. If a function y(x, t) is normalized at t=0, i.e. +∞o [y*(x,0)y/(x,0)dx = 1 -8 and y(x,t) satisfies the time-dependent Schrodinger equation, i.e. дф(x, t) ħ² d²(x, t) ih Ət 2m dx² then y(x,t) is normalized at any later moment in time t, i.e. +∞o [y*(x,t)y(x,t)dx=1_for any t. -00 + V (x, t)(x, t) Note: it is possible to prove this even for an arbitrary time-dependent potential energy V(x,t). Thus the wavefunction that satisfies the time-dependent Schrodinger equation automatically obeys the normalization condition. Hint: Calculate the time derivative of the normalization integral and prove that it is zero.

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Show that the time-dependent Schrödinger equation preserves the normalization
of the wavefunction, i.e.
If a function y(x,t) is normalized at t=0, i.e.
[y*(x,0)y/(x,0)dx = 1
oot
oot
and y(x,t) satisfies the time-dependent Schrodinger equation, i.e.
дф(x, t)
ħ² d²(x, t)
ih
Ət
2m dx²
then y(x,t) is normalized at any later moment in time t, i.e.
fy*(x,t)y(x,t)dx=1_ for any t.
-00
-∞0
+ V (x, t)(x, t)
Note: it is possible to prove this even for an arbitrary time-dependent potential energy
V(x, t). Thus the wavefunction that satisfies the time-dependent Schrodinger equation
automatically obeys the normalization condition.
Hint: Calculate the time derivative of the normalization integral and prove that it is zero.
Transcribed Image Text:Show that the time-dependent Schrödinger equation preserves the normalization of the wavefunction, i.e. If a function y(x,t) is normalized at t=0, i.e. [y*(x,0)y/(x,0)dx = 1 oot oot and y(x,t) satisfies the time-dependent Schrodinger equation, i.e. дф(x, t) ħ² d²(x, t) ih Ət 2m dx² then y(x,t) is normalized at any later moment in time t, i.e. fy*(x,t)y(x,t)dx=1_ for any t. -00 -∞0 + V (x, t)(x, t) Note: it is possible to prove this even for an arbitrary time-dependent potential energy V(x, t). Thus the wavefunction that satisfies the time-dependent Schrodinger equation automatically obeys the normalization condition. Hint: Calculate the time derivative of the normalization integral and prove that it is zero.
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