Weight of configuration

The role of is to reduce the weight of configurations (i.e. a way of spreading N electrons over the lattice) with doubly occupied sites, where D = measures the number of double occupations and g (< 1) is a... 

Now we observe that the average monomer concentration can also be written as the fraction of the sum of all weights of configurations which have a monomer at r relative to Z( U ), the unrestricted sum of all weights,... 

Where k is Boltzmann constant and Q the weight of configuration (thermodynamic probability). Q is defined as the number of microstates forming a macrostate. With... 

The grand partition function of Eq. (85) for 5- simplex lattice is written in terms of six restricted partition functions shown in Fig 19. Out of six configurations two (A i and B >) represent the sums of weights of configurations of the polymer chain within one r-th order subgraph away from surface, and the remaining four S E and represent the surface functions. As in the case of the 4-simplex, the recursion relations for and do not include other variables. 

This W is referred to as the weight of configurations. Taking the logarithm of (D.15) yields... 

Configuration Interaction (or electron correlation) adds to the single determinant of the Hartree-Fock wave function a linear combination of determinants that play the role of atomic orbitals. This is similar to constructing a molecular orbital as a linear combination of atomic orbitals. Like the LCAO approximation. Cl calculations determine the weighting of each determinant to produce the lowest energy ground state (see SCFTechnique on page 43). 

Styrene-butadiene rubber is prepared from the free-radical copolymerization of one part by weight of styrene and three parts by weight of 1,3-butadiene. The butadiene is incorporated by both 1,4-addition (80%) and 1,2-addition (20%). The configuration around the double bond of the 1,4-adduct is about 80% trans. The product is a random copolymer with these general features ... 

---