Boson correlation energies via variational minimization with the two-particle reduced density matrix: ExactN-representability conditions for harmonic interactions

2004 ◽  
Vol 69 (4) ◽  
Author(s):  
Gergely Gidofalvi ◽  
David A. Mazziotti
Keyword(s):  
Density Matrix ◽  
Reduced Density Matrix ◽  
Variational Minimization ◽  
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.

scholarly journals Reexamining the variational two-particle reduced density matrix for nuclear systems

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
J. G. Li ◽  
N. Michel ◽  
W. Zuo ◽  
F. R. Xu
Keyword(s):  
Density Matrix ◽  
Reduced Density Matrix ◽  
Nuclear Systems ◽  
Reduced Density

The cumulant two-particle reduced density matrix as a measure of electron correlation and entanglement

2006 ◽  
Vol 125 (17) ◽  
pp. 174105 ◽  
Author(s):  
Tamás Juhász ◽  
David A. Mazziotti
Keyword(s):  
Density Matrix ◽  
Electron Correlation ◽  
Reduced Density Matrix ◽  
Reduced Density
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