Question A6 Consider an infinite square well with V = 0 in the interval -L/2 < x < L/2, and V → ∞ everywhere else. A particle of mass m is in the groundstate of this system, and is known to have a wavefunction and energy given by TX √ = COS and E = π²h² 2mL² The system is then perturbed so that its potential takes the constant value V
Question A6 Consider an infinite square well with V = 0 in the interval -L/2 < x < L/2, and V → ∞ everywhere else. A particle of mass m is in the groundstate of this system, and is known to have a wavefunction and energy given by TX √ = COS and E = π²h² 2mL² The system is then perturbed so that its potential takes the constant value V
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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![Question A6
Consider an infinite square well with V = 0 in the interval -L/2 < x < L/2, and V → ∞
everywhere else. A particle of mass m is in the groundstate of this system, and is known to have
a wavefunction and energy given by
TX
√ =
COS
and
E =
π²h²
2mL²
The system is then perturbed so that its potential takes the constant value V <E in the region
-L/4 < x < L/4, while the value of V(x) at all other locations is unchanged. Sketch the
new potential, and calculate the change that this perturbation induces in the energy level of the
groundstate.
[8 marks]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6c0d52ac-ebeb-4643-8051-a3a6486fdce4%2Fb854680f-626b-407d-8467-9c5b5a3d96d9%2Fxhpzy4r_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question A6
Consider an infinite square well with V = 0 in the interval -L/2 < x < L/2, and V → ∞
everywhere else. A particle of mass m is in the groundstate of this system, and is known to have
a wavefunction and energy given by
TX
√ =
COS
and
E =
π²h²
2mL²
The system is then perturbed so that its potential takes the constant value V <E in the region
-L/4 < x < L/4, while the value of V(x) at all other locations is unchanged. Sketch the
new potential, and calculate the change that this perturbation induces in the energy level of the
groundstate.
[8 marks]
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