Physics & Astronomy
perturbation
99%
energy
69%
perturbation theory
64%
orbitals
59%
density functional theory
58%
configuration interaction
54%
excitation
52%
electrons
46%
electronics
42%
potential energy
42%
self consistent fields
39%
approximation
38%
polyacetylene
36%
equations of motion
33%
wave functions
30%
Green's functions
26%
vibration
26%
costs
24%
electronic structure
24%
quantum chemistry
24%
polyethylenes
23%
polymers
22%
operators
21%
crystals
21%
molecules
20%
evaluation
19%
functionals
19%
hydrofluoric acid
18%
expansion
17%
phonons
17%
diagrams
16%
grids
16%
ground state
16%
harmonics
15%
energy bands
15%
sampling
15%
polyatomic molecules
15%
gradients
15%
field theory (physics)
15%
theorems
14%
contraction
14%
cations
14%
Monte Carlo method
14%
electron affinity
14%
Brillouin zones
13%
Feynman diagrams
13%
tensors
12%
algebra
12%
polycyclic aromatic hydrocarbons
11%
temperature
11%
Chemical Compounds
Coupled Cluster
100%
Many-Body Perturbation Theory
96%
Electron Correlation Energy
74%
Electron Correlation
67%
Orbital
62%
Wave Function
59%
Coupled Cluster Singles and Doubles Theory
57%
Tight Binding Model
55%
Density Functional Theory
53%
Coupled Cluster Theory
48%
Potential Energy Surface
43%
Electronic State
38%
Error
37%
Excited State
36%
Polyacetylene Polymer
35%
Vibrational Frequency
32%
Anharmonic Molecular Vibration
31%
Inelastic Neutron Scattering
25%
Phonon
24%
Ground State
24%
Brillouin Zone
23%
Hydrogen Fluoride
22%
Ionization Potential
22%
Electron Particle
22%
Hartree-Fock Calculation
21%
Canonical Ensemble
21%
Force
19%
Application
19%
Excited Electronic State
18%
Point Group
17%
Exchange-Correlation Potential
15%
LCAO Calculation
13%
Pressure
13%
