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arXiv · 2507.06362

Where Photons Have Been: Nowhere Without All Components of Their Wavefunctions

R. E. Kastner
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Abstract

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 interpretations of quantum theory including the Two-State Vector Formalism (TSVF) and the Transactional Interpretation (TI). It is pointed out that the TSVF account fails to predict the observed data based only on the first-order wavefunction component. It is shown that the Transactional Interpretation readily accounts for all the observed phenomena.

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R. E. Kastner. 2025-07-08. Where Photons Have Been: Nowhere Without All Components of Their Wavefunctions. https://arxiv.org/abs/2507.06362

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