Determination of a one-electron reduced density matrix using a coupled pseudo-atom model and a set of complementary scattering data

2007 ◽  
Vol 63 (3) ◽  
pp. 234-238 ◽  
Author(s):  
Jean-Michel Gillet
Keyword(s):  
Density Matrix ◽  
Reduced Density Matrix ◽  
Scattering Data ◽  
Atom Model ◽  
Reduced Density ◽  
Pseudo Atom

scholarly journals Insights into one-body density matrices using deep learning

2020 ◽  
Vol 224 ◽  
pp. 265-291 ◽  
Author(s):  
Jack Wetherell ◽  
Andrea Costamagna ◽  
Matteo Gatti ◽  
Lucia Reining
Keyword(s):  
Deep Learning ◽  
Density Matrix ◽  
Reduced Density Matrix ◽  
Body Density ◽  
Density Matrices ◽  
Learning Constraints ◽  
The One ◽  
Reduced Density

Deep-learning constraints of the one-body reduced density matrix from its compressibility to enable efficient determination of key observables.

scholarly journals Unrestricted treatment for the direct variational determination of the two-electron reduced density matrix for doubly occupied-configuration-interaction wave functions

2019 ◽  
Vol 150 (16) ◽  
pp. 164106 ◽  
Author(s):  
Diego R. Alcoba ◽  
Alicia Torre ◽  
Luis Lain ◽  
Gustavo E. Massaccesi ◽  
Ofelia B. Oña ◽  
...  
Keyword(s):  
Density Matrix ◽  
Configuration Interaction ◽  
Wave Functions ◽  
Reduced Density Matrix ◽  
Reduced Density

Simple Hamiltonians which exhibit drastic failures by variational determination of the two-particle reduced density matrix with some well known N-representability conditions

2006 ◽  
Vol 125 (24) ◽  
pp. 244109 ◽  
Author(s):  
Maho Nakata ◽  
Bastiaan J. Braams ◽  
Mituhiro Fukuda ◽  
Jerome K. Percus ◽  
Makoto Yamashita ◽  
...  
Keyword(s):  
Density Matrix ◽  
Reduced Density Matrix ◽  
Reduced Density

Density matrix and purity evolution in dissipative two-level systems: II. Relaxation

2021 ◽  
Author(s):  
Sambarta Chatterjee ◽  
Nancy Makri
Keyword(s):  
Density Matrix ◽  
Time Evolution ◽  
Reduced Density Matrix ◽  
Level System ◽  
Two Level Systems ◽  
Reduced Density ◽  
Harmonic Bath

We investigate the time evolution of the reduced density matrix (RDM) and its purity in the dynamics of a two-level system coupled to a dissipative harmonic bath, when the system is initially placed in one of its eigenstates.

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