Hypervirial Theorems and the Hellman- Feynman Theorem in Different Coordinate Systems
Hypervirial and Hellmann-Feynman theorems in different coordinate systems
COORDINATE SYSTEM↗
Engineering topics
Epstein, S. T.
Publications and source records attributed to Epstein, S. T..
Index of refraction of helium in the shielding approximation.
Refraction index for helium isoelectronic sequence, using frequency dependent dipole polarizability
QUANTUM THEORY↗
Index of refraction of helium in the shielding approximation
Explore the source record for details and available documents.
Epstein, S. T.↗
Some Remarks on the Use of the Variational Principle for the Second Order Energy
Approximate ground state wave function used in variational principle for second order energy
WAVE FUNCTION↗
Recent developments in perturbation theory
Rayleigh-Schroeder perturbation theory - degenerate and non-degenerate states - quantum chemistry - other perturbation equations
PERTURBATION THEORY↗
HYPERVIRIAL THEOREMS FOR VARIATIONAL WAVE FUNCTIONS IN SCATTERING THEORY
Hypervirial theorems for variational wave function in scattering theory
WAVE FUNCTION↗