On the loss of coherence in double-slit diffraction experiments

A.S. Sanz, F. Borondo, and Martin J. Bastiaans

By using optical models based on the theory of partially coherent light, and the quantum decoherence model proposed by Joos and Zeh [Z. Phys. B 59, 223 (1985)], we explore incoherence and decoherence in interference phenomena. The problem chosen to study is that of the double-slit diffraction experiment, a paradigmatic example in quantum mechanics. In particular, we perform an analysis of the experiment carried out with cold neutrons by Zeilinger et al. [Rev. Mod. Phys. 60, 1067 (1988).]


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