## Abstract We have obtained the Bloch spin wave dispersion formula using the methods of spinโfree quantum chemistry. The spinโfree eigenvectors are waves in spinโfree space. This development makes the point that Bloch spin waves are dynamically spinโfree. The neutron diffraction transition moment
Spin-free quantum chemistry. VII. The Slater determinant
โ Scribed by Matsen, Frederick A.; Cantu, Antonio A.
- Book ID
- 118042356
- Publisher
- American Chemical Society
- Year
- 1969
- Tongue
- English
- Weight
- 602 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0022-3654
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract We discuss the calculation of quasielastic critical neutron scattering for systems defined by a spinโfree Hamiltonian. The system dependent property which determines the critical scattering is the thermal average of a spinโfree operator called the general unpaired electron correlation o
## Abstract The twoโparticle spatial density matrix components introduced by McWeeny are expressed in terms of the Fock coordinate wave function, which is constructed from an arbitrary function of __N__ spatial coordinates. The integral relations for these components are verified. The necessary mat
## Abstract The assignment of the alternancy quantum number to the __N__โelectron states of neutral alternant hydrocarbons is discussed within the spinโfree unitary group formulation. Alternancy is defined with respect to both molecular graphs and molecular orbital eigenvalues. The properties of th