If light is a particle, what is wavelength / frequency ?

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SUMMARY

The discussion centers on the relationship between light as a particle and its associated wavelength and frequency. Participants assert that the wavelength of a particle, such as a photon, is indeed linked to the psi-function prior to measurement, aligning with the principles of quantum mechanics. The conversation highlights the De Broglie wavelength as a crucial concept, emphasizing that both wave and particle descriptions coexist in quantum theory. This duality is essential for understanding the behavior of light in different contexts.

PREREQUISITES
  • Quantum Mechanics fundamentals
  • Understanding of the psi-function in quantum theory
  • Familiarity with De Broglie wavelength
  • Basic knowledge of electromagnetic waves
NEXT STEPS
  • Research the implications of the psi-function in quantum mechanics
  • Study the concept of De Broglie wavelength in detail
  • Explore the wave-particle duality of light
  • Learn about the measurement problem in quantum mechanics
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Students of physics, quantum mechanics enthusiasts, and anyone seeking to deepen their understanding of the wave-particle duality of light.

nonequilibrium
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If light is a particle, what is "wavelength"/"frequency"?

Hello,

Is the wavelength of a particle simply the wavelength of the psi-function before measurement? Or (/and?) is it an intrinsic property that is "even there in the particle" when you measure the presence of the particle (i.e. reduction), like energy?

Or is the nature of this question exhibiting a deeper misunderstanding of mine?

My formal knowledge about QM doesn't extend beyond an introductory course.
 
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mr. vodka said:
Is the wavelength of a particle simply the wavelength of the psi-function before measurement?
Yes. Deeper question: what's the wavelength of particle? DeBroigle wave? - that is exactly the same. EM-wave for photon? - counterparts regarding different (QM / wave optics) approaches
Or is the nature of this question...
Probably "and" not "or" :devil:
 

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