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quant-ph2025
Where Photons Have Been: Nowhere Without All Components of Their Wavefunctions
R. E. Kastner
A nested interferometer experiment by Danan et al (2013) is discussed and some claims evaluated concerning the whereabouts of the photon, primarily in the context of time-symmetric…
quant-ph2025★ 1 cited
Maxwell's Demon Is Foiled by the Entropy Cost of Measurement, Not Erasure
R. E. Kastner
I dispute the conventional claim that the second law of thermodynamics is saved from a "Maxwell's Demon" by the entropy cost of information erasure, and show that instead it is mea…