QM: The double square well potential

In summary, the conversation is discussing the "double square well" potential and how the energies of the ground state and first excited state vary as the distance between the two wells, represented by b, increases. The solution involves considering the individual energy levels for a finite square well and how they combine to give the overall energy for the double square well potential. There is also a question about the ground state and first excited state for the system and how they relate to the individual square wells. The author is seeking clarification and assistance in understanding this concept.
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epsilonjon
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QM: The "double square well" potential

Homework Statement



Consider the "double square well" potential below. Qualitively (no calculations) how do the energies of the ground state and the first excited state vary as b goes from zero to infinity (i.e. the two wells become further and further apart)?

[PLAIN]http://img12.imageshack.us/img12/9164/unlednpw.jpg

The Attempt at a Solution



I've worked out the energy levels of the finite square well in a previous question, so the energies in this case should revert back to those for b=0. It is for when b goes to infinity which I need help.

We'll end up with two isolated square wells of width a, for which I know the individual allowed energies, but how do these combine to give the overall energy? In the ground state of the system would both the individual square wells be in their ground state? Then in the first excited state of the system, would one of the individual square wells be in its first excited state whilst the other is still in its ground state? But then it's like you've got 2 different energies for one state, so this is probably wrong :\

Thanks for any help :-)
 
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Anyone? :-(
 

Related to QM: The double square well potential

What is the double square well potential in quantum mechanics?

The double square well potential is a theoretical model used in quantum mechanics to describe the behavior of a particle confined within a potential energy barrier with two wells. It is commonly used to study the behavior of particles in a variety of physical systems, such as atoms and molecules.

How is the double square well potential different from a single square well potential?

The main difference between the double square well potential and a single square well potential is that the former has two potential energy wells, while the latter only has one. This allows for more complex behavior of particles, such as tunneling between the two wells.

What are some real-world applications of the double square well potential?

The double square well potential has been used to study the behavior of electrons in semiconductors and the behavior of atoms and molecules in chemical reactions. It has also been used to model the properties of certain types of lasers and optical devices.

What is the Schrödinger equation and how is it used in relation to the double square well potential?

The Schrödinger equation is a fundamental equation in quantum mechanics that describes the behavior of particles in a given potential energy field. It is used to solve for the wave function, which contains information about the position and energy of the particle in the double square well potential.

What are the energy levels in the double square well potential?

The energy levels in the double square well potential are quantized, meaning they can only take on certain discrete values. These energy levels are determined by the depth and width of the potential wells, as well as the mass of the particle. The lowest energy level is called the ground state, and higher energy levels are referred to as excited states.

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