Changing potential in harmonic oscillator

In summary, the question is about the change in potential for a particle in ground state of a S.H.O and what the resulting wavefunction will be like. The change is from V_1(X)=\frac{1}{2}mw^2_1x^2 to V_2(X)=\frac{1}{2}mw^2_2(x-x_o)^2 and the individual believes that the wavefunction will remain the same except for replacing x with (x-x_o) and w_1 with w_2. However, if the change is sudden, the wavefunction will not change immediately but rather adapt to the new potential according to the TDSE with initial conditions being the wavefunction at t=0.
  • #1
facetten
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i have a quick question
A particle in ground state of a S.H.O whose potential is given by

[tex]V_1(X)=\frac{1}{2}mw^2_1x^2[/tex]
suddenly changes to

[tex]V_2(X)=\frac{1}{2}mw^2_2(x-x_o)^2[/tex]

what is the wavefunction going to be like for the new potential?

i'd think everything else stays the same in the wavefunction except replacing x with (x-x_o) and

w_1 with w_2?
 
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  • #2
If the change is really sudden, then immediately after the change the wavefunction is going to be exactly the same as before. If you let the system evolve, then it will change to "adapt" to V2, according to the TDSE with the initial conditions being that the wavefunction at t=0 will be equal to the wavefunction corresponding to the initial potential. A process that changes very rapidly is called a diabatic process.
 

FAQ: Changing potential in harmonic oscillator

What is a harmonic oscillator?

A harmonic oscillator is a physical system that exhibits periodic motion around an equilibrium point. It is described by a potential energy function that follows Hooke's law, where the force is directly proportional to the displacement from the equilibrium point.

How does the potential energy change in a harmonic oscillator?

In a harmonic oscillator, the potential energy changes as the system oscillates between the maximum displacement from the equilibrium point and the equilibrium point itself. This results in a sinusoidal potential energy curve.

What factors affect the changing potential in a harmonic oscillator?

The changing potential in a harmonic oscillator is affected by the spring constant, which determines the stiffness of the system, and the mass of the object attached to the spring. Other factors such as external forces or damping may also affect the potential energy.

How does the changing potential relate to the motion of the harmonic oscillator?

The changing potential in a harmonic oscillator is directly related to the motion of the system. As the potential energy increases, the kinetic energy decreases, and vice versa. This results in a cyclical motion of the oscillator around the equilibrium point.

Can the potential energy in a harmonic oscillator be changed?

Yes, the potential energy in a harmonic oscillator can be changed by altering the spring constant, mass, or external forces acting on the system. However, the shape of the potential energy curve will still follow a sinusoidal pattern due to the nature of Hooke's law.

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