title: Quantum effects in the dynamics of deeply supercooled water.
abstract: Despite its simple chemical structure, water remains one of the most puzzling liquids with many anomalies at low temperatures. Combining neutron scattering and dielectric relaxation spectroscopy, we show that quantum fluctuations are not negligible in deeply supercooled water. Our dielectric measurements reveal the anomalously weak temperature dependence of structural relaxation in vapor-deposited water close to the glass transition temperature T(g)∼136K. We demonstrate that this anomalous behavior can be explained well by quantum effects. These results have significant implications for our understanding of water dynamics.
authors.affiliation: Department of Chemistry and Joint Institute for Neutron Sciences, University of Tennessee, Knoxville, Tennessee 37996, USA.|Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: A L
authors.initials: AL
authors.lastname: Agapov
authors.affiliation: Chemical and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: A I
authors.initials: AI
authors.lastname: Kolesnikov
authors.affiliation: Department of Chemistry and Joint Institute for Neutron Sciences, University of Tennessee, Knoxville, Tennessee 37996, USA.|Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: V N
authors.initials: VN
authors.lastname: Novikov
authors.affiliation: Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, USA.
authors.forename: R
authors.initials: R
authors.lastname: Richert
authors.affiliation: Department of Chemistry and Joint Institute for Neutron Sciences, University of Tennessee, Knoxville, Tennessee 37996, USA.|Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
authors.forename: A P
authors.initials: AP
authors.lastname: Sokolov
mesh_terms: D003080:Cold Temperature; D058266:Dielectric Spectroscopy; D005990:Glycerol / Q000737:chemistry; D057446:Hydrodynamics; D033363:Neutron Diffraction; D044366:Transition Temperature; D014867:Water / Q000737:chemistry*
chemical_list: D014867:Water; D005990:Glycerol