Proving Vector Potential Pump Amplitude-Intensity Relationship

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SUMMARY

The discussion focuses on proving the relationship between the dimensionless amplitude (a) of a wave and its intensity (I). The relevant equations include the magnetic field B defined as the curl of the vector potential A, where A is expressed as A = [mass of electron * c / e]*a*e^[i*(kx-wt)]. The intensity I is calculated using the formula I = c*B^2 / (magnetic permeability of free space). A hint provided suggests that applying the condition div(A) = 0 will yield a unique solution for B.

PREREQUISITES
  • Understanding of vector calculus, specifically curl and divergence operations.
  • Familiarity with electromagnetic theory, particularly the concepts of magnetic fields and vector potentials.
  • Knowledge of wave mechanics, including amplitude and intensity relationships.
  • Basic understanding of the properties of light, including wavelength and frequency.
NEXT STEPS
  • Study the mathematical properties of curl and divergence in vector fields.
  • Research the derivation of the magnetic field from vector potentials in electromagnetic theory.
  • Explore the relationship between wave amplitude and intensity in classical wave mechanics.
  • Learn about the implications of the condition div(A) = 0 in the context of electromagnetic fields.
USEFUL FOR

Students and researchers in physics, particularly those specializing in electromagnetism and wave mechanics, will benefit from this discussion. It is also valuable for anyone looking to deepen their understanding of the mathematical relationships governing wave behavior in electromagnetic fields.

cetmoimonsieur
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Homework Statement


Prove that the relationship between the dimensionless amplitude a of a wave and the intensity I of the wave is given by:

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Homework Equations


B = curl (A)
B: Magnetic Field
A = [mass of electron * c / e ]*a*e^[i*(kx-wt)]
where k is the wavenumber and is given by: 2pi / wavelength of laser
I = c*B^2 / (magnetic permeability of free space)
Hint: div(A) = 0 will give a unique solution for B

The Attempt at a Solution


Honestly I do not know where to begin. Take the divergence of the equation of A and find a solution for B? I am not sure.
 
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Sorry to bump this thread, but does anyone have an idea?
 

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