Is There A Maximum Possible Photon Energy?

AI Thread Summary
The discussion explores the concept of photon energy in relation to the Planck length, suggesting that the smallest possible wavelength of light could be 1.63e-35m. This implies a frequency of 1.84e+43 Hz and an energy of approximately 3e8 J. Current theories indicate that space is not quantized, leading to no defined upper limit on photon energy or lower limit on wavelength. The Planck energy represents a boundary where existing physical models fail to provide accurate descriptions. Ultimately, this indicates that the limits are more about our understanding than about the fundamental nature of physics itself.
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Ok, so I just had a thought.
A Planck length is 1.63e-35m
Would that mean that the smallest possible wavelenth of light is 1.63e-35m?
Giving a frequency of 1.84e+43 Hz, and, of course, an energy of 3e8 J.
 
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As far as we know right now, there is no minimum lenght. This means that according to the present theories space is not quantized and so there is no upper limit to a photon energy (and no lower limit to its wavelenght).
 
The Planck energy (apart from small prefactors, your result) is a region where our current models in physics cannot describe processes any more. It is not an upper limit on physics itself, it is just an upper limit on our understanding of the universe.
 
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