Entangled system neutron scattering

The mean dimensions of the macromolecular coils in the entangled system are found to approach their unperturbed values, i.e. values they would have in a 0-solvent. The coil dimensions in the concentrated system are the same as the dimensions of ideal coils. This is confirmed by direct measurements of the dimensions of macromolecular coils in concentrated solutions and melts by neutron scattering [30, 31]. 

These NCS experiments [Chatzidimitriou-Dreismann 1997 (a) Chatzidimi-triou-Dreismann 1999 Karlsson 1999], which were motivated by the theoretical work of C. A. Chatzidimitriou-Dreismann [Chatzidimitriou-Dreismann 1991 Chatzidimitriou-Dreismann 1997 (b)] on protonic quantum entanglement in condensed systems and by the results of a an earlier Raman experiment on liquid H O / D O mixtures [Chatzidimitriou-Dreismann 1995], were followed by a series of other experiments on liquid and solid organic materials [Chatzidimitriou-Dreismann 2000 (b) Chatzidimitriou-Dreismann 2001 Chatzidimitriou-Dreismann 2002 (a)], various metallic hydrides [Abdul-Redah 2000 Karlsson 2002 (b) Karlsson 2003 (b)], liquid hydrogen [Chatzidimitriou-Dreismann 2004 (b)] and among others an ionic solid [Abdul-Redah 2004] using the same experimental technique, i.e., neutron Compton scattering. All these experiments confirmed the anomalous results found earlier and also revealed certain new aspects of the considered effect. 

Theoretical predictions of decoherence rates, based on known interactions between system and environment, are still only at a primitive level due to the complexity of most experimental situations. A simple example will be discussed in this chapter in relation to one of the experiments. The Compton scattering of neutrons also seems to allow measurements that have another connection to recent discussions on quantum information theory, namely, the energy needed to destroy information stored in quantum entanglement. At the end of this chapter, this possibility will be mentioned briefiy. 

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