13 citations · 29 across the 5 of their papers we have counts for
5 papers
Required number of states increases only moderately with the problem size for antisymmetrized geminal powers
Wataru Uemura, Takahito Nakajima
We propose an algorithm to obtain the ground-state energy of a many-electron system using the variational wave function of a linear combination of antisymmetrized geminal powers. W…
Antisymmetrized Geminal Powers with Larger Chemical Basis Sets
Wataru Uemura, Takahito Nakajima
In previous research, we tested the wave function format of a linear combination of several antisymmetrized geminal power states. A numerical problem in the geminal matrices was no…
Configuration Interaction with Antisymmetrized Geminal Powers
Wataru Uemura, Shusuke Kasamatsu, Osamu Sugino
To avoid the combinatorial computational cost of configuration interaction (CI), we have previously introduced the symmetric tensor decomposition CI (STD-CI) method, where we take…
Symmetric Tensor Decomposition Description of Fermionic Many-Body Wavefunctions
Wataru Uemura, Osamu Sugino
The configuration interaction (CI) is a versatile wavefunction theory for interacting fermions but it involves an extremely long CI series. Using a symmetric tensor decomposition (…
A new representation of the many body wave function and its application as a post Hartree-Fock energy variation method
Wataru Uemura
In this paper, we introduce a new representation of many body electron wave function and a few calculation results of the ground state energies of many body systems using that repr…