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Evidence of macroscopically entangled protons in a mixed isotope crystal of KHpD1−pCO3   
Evidence of macroscopically entangled protons in a mixed isotope crystal of KHpD1-pCO3
François Fillaux, Alain Cousson and Matthias J Gutmann, J. Phys.: Condens. Matter 22 (2010) 045402.

We examine whether protons and deuterons in a crystal of KH0.76D0.24CO3 at 300 K are particles or matter waves. The neutron scattering function measured over a broad range of reciprocal space reveals the enhanced diffraction pattern anticipated for antisymmetrized macroscopic states for protons (fermions). These features exclude a statistical distribution of protons and deuterons. Raman spectra are consistent with a mixture of KHCO3 and KDCO3 sublattices whose isomorphous structures are independent of the isotope content. We propose a theoretical framework for decoherence-free proton and deuteron states.

A. Menelle, 2010-02-15 00:00:00

 

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