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Can we argue based on Landauer's principle that if one bit information is changed inside a blackbody, the total radiated energy should be at least or in order of $kTln2$? If it is so, can we also argue that this energy should be distributed over all the modes of the cavity? Furthermore, can it also be argued that this contradicts with the Rayleigh–Jeans law which says the total energy should be infinite?

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Did you post the question twice? – Luboš Motl Mar 26 '13 at 8:48
@LubošMotl, no. in the other question I have asked whether I could show whether Landauer's principle contradict Wien's displacement law. – Omar Shehab Mar 26 '13 at 15:52

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