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Article overview
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Dielectric Anomaly in Ice near 20 K; Evidence of Macroscopic Quantum Phenomena | Fei Yen
; Tian Gao
; | Date: |
2 Aug 2015 | Abstract: | H2O is one of the most important substances needed in sustaining life; but
yet not much is known about its ground state. Here, a previously unidentified
anomaly is identified in the form of a minimum in the imaginary part of the
dielectric constant with respect to temperature near 20 K while the real part
remains monotonic. Isothermal dispersion and absorption measurements show
coinciding results. For the case of heavy ice (D2O), no anomaly was identified
confirming an apparent isotope effect. Concerted quantum tunneling of protons
is believed to be the main cause behind the reported anomaly. Our findings
identify another system that exhibits macroscopic quantum phenomena of which
rarely occur in nature. | Source: | arXiv, 1508.0215 | Services: | Forum | Review | PDF | Favorites |
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