Question

In: Physics

In the harmonic oscillator problem, the normalized wave functions for the ground and first excited states...

In the harmonic oscillator problem, the normalized wave functions for the ground and first excited states are ψ0 and ψ1. Using these functions, at some point t, a wave function u = Aψ0 + Bψ1 is constructed, where A and B are real numbers.
(a) Show that the average value of x in the u state is generally non-zero.

(b) What condition A and B must satisfy if we want the function u to be normalized?

(c) For which values ​​of the constants A and B do we get the maximum and for which minimum of <x>?


The result:

(b) A2 + B2 = 1
(c) Maximum: A = B = 2−1/2

Solutions

Expert Solution


Related Solutions

QUANTUM MECHANICS-upper level In the harmonic oscillator problem, the normalized wave functions for the ground and...
QUANTUM MECHANICS-upper level In the harmonic oscillator problem, the normalized wave functions for the ground and first excited states are ψ0 and ψ1. Using these functions, at some point t, a wave function u = Aψ0 + Bψ1 is constructed, where A and B are real numbers. (a) Show that the average value of x in the u state is generally non-zero. (b) What condition A and B must satisfy if we want the function u to be normalized? (c)...
1)Consider a particle that is in the second excited state of the Harmonic oscillator. (Note: for...
1)Consider a particle that is in the second excited state of the Harmonic oscillator. (Note: for this question and the following, you should rely heavily on the raising and lowering operators. Do not do integrals.) (a) What is the expectation value of position for this particle? (b) What is the expectation value of momentum for this particle? (c) What is ∆x for this particle? 2) Consider a harmonic oscillator potential. (a) If the particle is in the state |ψ1> =...
For the ground state of the Harmonic Oscillator and 2D Rigid Rotor A. Give the time...
For the ground state of the Harmonic Oscillator and 2D Rigid Rotor A. Give the time dependent wave function B. Determine <x> and <p> for both the Harmonic Oscillator and 2D Rigid Rotor
A harmonic oscillator is in the ground state when the parameter k DOUBLES without changing the...
A harmonic oscillator is in the ground state when the parameter k DOUBLES without changing the wavefunction. What's the probability that the oscillator is found in the new ground state?
If elements carbon through neon are in the ground state and are excited the first excited...
If elements carbon through neon are in the ground state and are excited the first excited state, give the electron configuration for the state of the one excited electron. Solution: C: N: O: F: Ne:
Explain why in the case of the quantum harmonic oscillator the wave function can cross the...
Explain why in the case of the quantum harmonic oscillator the wave function can cross the potential barrier and why does the same not happen in the case of the infinite potential well? Explain in detail
Solve the quantum harmonic oscillator problem by using the matrix method.
Solve the quantum harmonic oscillator problem by using the matrix method.
Draw the internuclear potential as a function of nuclear separation for the ground and excited states...
Draw the internuclear potential as a function of nuclear separation for the ground and excited states of a molecule where the equilibrium separation of the (bound) excited state is smaller than that in the ground state. Draw in the vibrational levels for each state, the electronic transition from the ground vibrational state, and the dissociation energies for each electronic state. What should the spectrum look like?
Consider the asymmetric 1/2 harmonic oscillator. use the Variational Principle to estimate the ground state energy...
Consider the asymmetric 1/2 harmonic oscillator. use the Variational Principle to estimate the ground state energy of this potential. Use as your trial function Axe^bx^2
consider Three-Dimensional harmonic oscillator with the same frequencies along all three directions. a) determine the wave...
consider Three-Dimensional harmonic oscillator with the same frequencies along all three directions. a) determine the wave function and the energy of the ground state. b) how many quantum numbers are needed to describe the state of oscillation? c) the degeneracy of the first excited state. express the wave function involved in the schrodinger equation as a product given by x, y, z and separate the variables.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT