descriptionPublicationkeyboard_double_arrow_right Article 22 Apr 2016 English Publisher:American Physical Society (APS)Journal:Physical Review Letters, volume 116 (issn: 0031-9007, eissn: 1079-7114,

Authors: Kolesnikov, AI; Reiter, GF; Choudhury, N; Prisk, TR; Mamontov, E; Podlesnyak, A; Ehlers, G; +3 Authors

doi: 10.1103/physrevlett.116.167802

pmid: 27152824

Quantum Tunneling of Water in Beryl: A New State of the Water Molecule

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Abstract

Using neutron scattering and ab initio simulations, we document the discovery of a new "quantum tunneling state" of the water molecule confined in 5 Å channels in the mineral beryl, characterized by extended proton and electron delocalization. We observed a number of peaks in the inelastic neutron scattering spectra that were uniquely assigned to water quantum tunneling. In addition, the water proton momentum distribution was measured with deep inelastic neutron scattering, which directly revealed coherent delocalization of the protons in the ground state.

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