What Is the Hamiltonian for a Wire Coil Under Reflection Transformation?

In summary, during the conversation, it was discussed that Noether's theorem can be applied to a coil of wire under reflection transformation invariance. When doing so, the Hamiltonian used would be the extermized function. It was also mentioned that while electromagnetism is not invariant over reflection transformations, electrodynamics is invariant under spatial reflections and time reversal. QED is also invariant under charge conjugation, but the electromagnetic field components must be transformed accordingly. It was noted that after a spatial reflection, magnetism is "left-handed" which does not exist in the real world, proving that electromagnetism is not invariant over spatial reflections.
  • #1
zush
21
0
When applying Noether's theorem to a coil of wire under reflection transformation invariance, what Hamiltonian would one use as as the extermized function? I realize that electromagnetism is not invariant over reflection transformations, that's what I am trying to prove.
 
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  • #2
Electrodyanmics is invariant under spatial reflections and time reversal. QED additionally also under charge conjugation. Of course, you have to transform the electromagnetic field components accordingly!
 
  • #3
Actually, since magnetism with respect to the current through a wire is "right-handed," ([tex]\nabla[/tex]xB = (1/c)[tex]\partial[/tex]E/[tex]\partial[/tex]t) after a spatial reflection it would be "left handed," ([tex]\nabla[/tex]xB = (-1/c)[tex]\partial[/tex]E/[tex]\partial[/tex]t) which does not exist in the real world, which therefore means that electromagnetism is not invariant over spatial reflections.
 

Related to What Is the Hamiltonian for a Wire Coil Under Reflection Transformation?

1. What is the Hamiltonian of a wire coil?

The Hamiltonian of a wire coil is a mathematical representation of the total energy of the system, including both kinetic and potential energy, that describes the behavior of the coil as it moves through space. It is often used in the study of electromagnetism and is an important concept in classical mechanics.

2. How is the Hamiltonian of a wire coil calculated?

The Hamiltonian of a wire coil is typically calculated using the Lagrangian method, which involves finding the difference between the total kinetic and potential energies of the system. It can also be derived from the coil's equations of motion or through the use of Hamilton's equations.

3. What factors affect the value of the Hamiltonian of a wire coil?

The value of the Hamiltonian of a wire coil is affected by a number of factors, including the size and shape of the coil, the strength of the magnetic field it is placed in, and the current flowing through the coil. Other factors such as the material of the wire and the presence of nearby conductors can also influence the Hamiltonian.

4. How does the Hamiltonian of a wire coil relate to its motion?

The Hamiltonian of a wire coil is directly related to its motion through the principle of least action. This means that the coil will follow a path that minimizes the Hamiltonian, which represents the total energy of the system. In other words, the coil will move in a way that conserves its energy and satisfies the equations of motion.

5. Can the Hamiltonian of a wire coil be used to predict its behavior?

Yes, the Hamiltonian of a wire coil can be used to predict its behavior in various situations. By analyzing the equations of motion derived from the Hamiltonian, it is possible to determine the trajectory of the coil, the forces acting on it, and other important characteristics of its motion. This information can be useful in designing and optimizing wire coil systems for a variety of applications.

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