Kinetic energies in quantum solids

Journal Article · Mon Mar 04 04:00:00 EST 1985 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.54.901· OSTI ID:5992121

Moleko, L K; Glyde, H R

We show that the recently measured kinetic energy of atoms in solid helium is substantially larger than expected for even a moderately anharmonic solid. The large kinetic energy is rather an explicit measure of the highly anharmonic nature of solid helium. An explanation is proposed here in terms of the anharmonic one-phonon response functions which have large, high-frequency tails that contribute significantly to the kinetic energy.

• Research Organization: Department of Physics, University of Ottawa, Ottawa, Canada K1N6N5
• DOE Contract Number: FG02-84ER45082
• OSTI ID: 5992121
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 54:9; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BCC LATTICES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
CUBIC LATTICES
DATA
ENERGY
EVEN-EVEN NUCLEI
FUNCTIONS
HELIUM 4
HELIUM ISOTOPES
INFORMATION
ISOTOPES
KINETIC ENERGY
LIGHT NUCLEI
NUCLEI
NUMERICAL DATA
PHONONS
QUANTUM CRYSTALS
QUASI PARTICLES
RESPONSE FUNCTIONS
STABLE ISOTOPES
THEORETICAL DATA