Scrodinger equation: infinite square well problem.

In summary, the conversation discusses the early understanding of nuclear physics and the discovery of the neutron. It then poses a problem to compute the ground state energy for an electron and a proton in a one-dimensional infinite well with a given length, and the energy difference between the ground state and the first excited state for each particle. The equations used for solving the problem are also mentioned.
  • #1
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Homework Statement



In the early days of nuclear physics before the neutron was discovered , it was thought that the nucleus contained only electrons and protons. If we consider the nucleus to be a one-dimensional infinite well with L=1e-15 m and ignore relativity, compute the ground state energy for a) the electron and b) the proton in the nucleus. c) compute the energy difference between the ground state and the first excited state. for each particle

Homework Equations



E(n)=n^2 *(h/(2*pi))^2/(2*m*L^2)

The Attempt at a Solution



part a and b wasn't very difficult. a)E=n^2 *(h/(2*pi))^2/(2*m*L^2)=pi^2*(1.054e-34 J*s)^2/((2)*(9.11e-31 kg)(1e-15)^2=6e-8 joules and b) E=n^2 *(h/(2*pi))^2/(2*m*L^2)=pi^2*(1.054e-34 J*s)^2/((2)*(1.67e-27 kg)(1e-15)^2 =3.28e-11 joules. I had trouble with part c. should I assume the first excited state is n=2?
 
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  • #2
someone please respond to my problem. Anybody. Does my problem appear unreadable?
 
  • #3




The Schrodinger equation is a fundamental equation in quantum mechanics that describes the behavior and evolution of quantum systems. In this case, the infinite square well problem is a simplified model used to study the behavior of particles confined within a potential well.

In order to solve for the ground state energy of the electron and proton in the nucleus, we can use the formula E(n) = n^2 * (h/(2*pi))^2 / (2*m*L^2). Using the given values, we can calculate the ground state energy for the electron as 6e-8 joules and for the proton as 3.28e-11 joules.

For part c, we can calculate the energy difference between the ground state and the first excited state by using the same formula and substituting n=2 for the first excited state. This gives us a difference of 3.24e-11 joules for the electron and 1.31e-10 joules for the proton.

It is important to note that this calculation is based on a simplified model and does not take into account the complexities of the actual nuclear structure. Additionally, the discovery of the neutron has shown that the nucleus contains more particles than just electrons and protons. Nonetheless, this exercise provides a useful example of how the Schrodinger equation can be applied to solve for the energy levels of particles in a confined potential well.
 

What is the Schrodinger equation?

The Schrodinger equation is a mathematical equation that describes the behavior of quantum systems, such as atoms and molecules. It was developed by Austrian physicist Erwin Schrodinger in 1926 and is a fundamental equation in quantum mechanics.

What is the infinite square well problem?

The infinite square well problem is a classic problem in quantum mechanics that involves a particle confined to a one-dimensional square well with infinitely high walls. It is often used as a simple model to introduce students to the concepts of quantum mechanics and the Schrodinger equation.

What are the solutions to the infinite square well problem?

The solutions to the infinite square well problem are standing waves, also known as stationary states. These solutions correspond to the different energy levels of the particle in the well.

What is the significance of the infinite square well problem?

The infinite square well problem is significant because it demonstrates the quantization of energy levels in quantum systems. It also provides a basis for understanding more complex quantum systems and their behavior.

How is the infinite square well problem used in real-world applications?

The infinite square well problem is used in a variety of real-world applications, such as understanding the behavior of electrons in atoms and the properties of semiconductors in electronics. It is also used in fields such as chemistry, materials science, and engineering.

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