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Quantum property of solid hydrogen as revealed by high-resolution laser spectroscopy

TitleQuantum property of solid hydrogen as revealed by high-resolution laser spectroscopy
Publication TypeJournal Article
Year of Publication2003
AuthorsKatsuki, H, Fushitani, M, Momose, T
JournalLOW TEMPERATURE PHYSICS
Volume29
Pagination832-837
Date PublishedSEP-OCT
ISSN1063-777X
Abstract

Pure vibrational overtone transitions of solid parahydrogen are studied using high-resolution laser spectroscopy. Extremely narrow spectral linewidth (similar to20 MHz) allows us to observe rich spectral structure that originates in subtle intermolecular interactions in the crystal. It is found that anisotropy of the distribution of zero-point lattice vibration of hydrogen molecules perturbs the energy levels of the vibrationally excited states significantly. A large amplitude of zero-point lattice vibration, an intrinsic propoerty of quantum solids, is directly observed from the present high-resolution spectroscopy. The first observation of a pure vibrational overtone transition of solid orthodeuterium is also discussed. (C) 2003 American Institute of Physics.

DOI10.1063/1.1619353