19952019
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Fingerprint Dive into the research topics where So Hirata is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

Chemical Compounds

Electron correlations
Density functional theory
Potential energy surfaces
Wave functions
Polyacetylenes
Excited states
Electrons
Excitation energy
Molecules
Equations of motion
Vibrational spectra
Correlation methods
Green's function
Electronic structure
Molecular vibrations
Quantum chemistry
Polymers
Crystals
Polyethylene
Hydrofluoric Acid
Ground state
Tensors
Infrared radiation
Ionization potential
Hamiltonians
Inelastic neutron scattering
Costs
Molecular crystals
Band structure
Algebra
Electron affinity
Water
Geometry
Cations
Ice
Point groups
Stretching
Oligomers
Monte Carlo methods
Taylor series
Correlation theory
Temperature
Crystal symmetry
Conjugated polymers
Crystalline materials
Formaldehyde
Polycyclic Aromatic Hydrocarbons
Coulomb interactions
Phonons
Hydrogen

Physics & Astronomy

Physics

perturbation
orbitals
electrons
potential energy
equations of motion
wave functions
quantum chemistry
gradients
harmonics
ground state
electron affinity
cations

General

energy
density functional theory
configuration interaction
electronics
self consistent fields
polyacetylene
vibration
electronic structure
Green's functions
costs
operators
crystals
polyethylenes
expansion
evaluation
contraction
field theory (physics)
grids
Feynman diagrams
diagrams
fragments
functionals

Mathematical and Computer Sciences

perturbation theory
approximation
tensors
algebra
Taylor series
theorems

Engineering

excitation
energy bands
inelastic scattering

Chemistry and Materials

polymers
molecules
hydrofluoric acid
polyatomic molecules
polycyclic aromatic hydrocarbons
carbon dioxide

Aerospace Sciences

Brillouin zones