Modeling Swelling Behavior of Thermoresponsive Polymer Brush with Lattice Density Functional Theory

Langmuir ◽  
2014 ◽  
Vol 30 (14) ◽  
pp. 4040-4048 ◽  
Author(s):  
Cheng Lian ◽  
Le Wang ◽  
Xueqian Chen ◽  
Xia Han ◽  
Shuangliang Zhao ◽  
...  
Computation ◽  
2019 ◽  
Vol 7 (4) ◽  
pp. 66 ◽  
Author(s):  
T. S. Müller ◽  
W. Töws ◽  
G. M. Pastor

Recent developments in the density-functional theory of electron correlations in many-body lattice models are reviewed. The theoretical framework of lattice density-functional theory (LDFT) is briefly recalled, giving emphasis to its universality and to the central role played by the single-particle density-matrix γ . The Hubbard model and the Anderson single-impurity model are considered as relevant explicit problems for the applications. Real-space and reciprocal-space approximations to the fundamental interaction-energy functional W [ γ ] are introduced, in the framework of which the most important ground-state properties are derived. The predictions of LDFT are contrasted with available exact analytical results and state-of-the-art numerical calculations. Thus, the goals and limitations of the method are discussed.


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