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The solution to the TDSE for a certain particle of mass m is: psi(x,t) = A x exp

ID: 1894238 • Letter: T

Question

The solution to the TDSE for a certain particle of mass m is:
psi(x,t) = A x exp(-yx + i (hy*/4 pi m)t) for x>0
=0 for x =0.
where y is real and postive, h is Planck's constant, and A is a normalization constant.


KEY:

*=this is squared.

f). Does the given wave function describe a particle that is bound or unbound?
g). If psi describes a bound particle: which energy state is it in (ground, first, excited, etc.)? If psi describes an unbound particle, what is the expectation value of the momentum?
h). If psi describes a bound particle: consider a beam of light in which each photon has energy equal the binding energy of the particle. Find a formula for the wavelength of the light.
If psi describes an unbound particle: Consider a beam of light in which each photon has momentum equal to the particle's expectation value for momentum. Find a formula for the wavelength of the light.

Explanation / Answer

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