Evolution of the reduced density matrix: a generalized projection-operator approach

2002 ◽  
Vol 63 (1-3) ◽  
pp. 105-108
Author(s):  
Irena Knezevic ◽  
David K. Ferry
Keyword(s):  
Density Matrix ◽  
Projection Operator ◽  
Reduced Density Matrix ◽  
Generalized Projection ◽  
Operator Approach ◽  
Generalized Projection Operator ◽  
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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