Landau quantization of cyclotron orbit

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SUMMARY

The discussion centers on the Hamiltonian for Landau quantization, specifically addressing the role of the speed of light (c) in the equation. The Hamiltonian presented is \(\hat{H}=\dfrac{\hat{p}^2_x}{2m}+\dfrac{1}{2m}\left(\hat{p}_y-\dfrac{q|\vec{B}|}{c}\hat{x}\right)^2\). Participants clarify that this formulation is in CGS units and suggest reviewing the SI version for dimensional consistency. The conclusion emphasizes that the inclusion of c is appropriate within the context of CGS units.

PREREQUISITES
  • Understanding of Hamiltonian mechanics
  • Familiarity with Landau quantization principles
  • Knowledge of electromagnetic theory, specifically cyclotron motion
  • Proficiency in unit systems, particularly CGS and SI
NEXT STEPS
  • Review the SI version of the Landau Hamiltonian
  • Study the implications of unit systems in quantum mechanics
  • Explore the relationship between cyclotron motion and magnetic fields
  • Investigate the role of dimensional analysis in physical equations
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Physicists, particularly those specializing in quantum mechanics and electromagnetism, as well as students studying advanced mechanics and unit conversions.

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I don't know what the speed of light c is doing in the Hamiltonian for the Landau quantization. The term doesn't have dimensions of momentum anymore. :confused:

[itex]\hat{H}=\dfrac{\hat{p}^2_x}{2m}+\dfrac{1}{2m}\left(\hat{p}_y-\dfrac{q|\vec{B}|}{c}\hat{x}\right)^2[/itex]


Any ideas?

thanks.
 
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This is the Hamiltonian for Landau quantization when using CGS units. Have a look at the SI version or convert it back yourself and you will find that the terms are ok.
 
yes. that's it! thanks. :biggrin:
 

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