scholarly journals Topologically correct phase boundaries and transition temperatures for Ising Hamiltonians via self-consistent coarse-grained cluster-lattice models

2011 ◽  
Vol 83 (14) ◽  
Author(s):  
Teck L. Tan ◽  
D. D. Johnson
2005 ◽  
Vol 71 (3) ◽  
Author(s):  
Michael Bachmann ◽  
Handan Arkın ◽  
Wolfhard Janke

2001 ◽  
Vol 15 (24n25) ◽  
pp. 3270-3278
Author(s):  
B. Buhrow ◽  
J. J. Deisz

We present a parallel algorithm for numerical calculations for electronic lattice models with interactions and disorder. In this scheme, diagonal and off-diagonal disorder are treated exactly per disorder configuration and interaction effects are evaluated using conserving approximations based on self-consistent perturbation theory. We demonstrate this method by calculating second-order corrections to the local pairing amplitude and specific heat for the attractive Hubbard model.


RSC Advances ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 3233-3245 ◽  
Author(s):  
Amin Koochaki ◽  
Mohammad Reza Moghbeli ◽  
Sousa Javan Nikkhah ◽  
Alessandro Ianiro ◽  
Remco Tuinier

The self-assembly behaviour of dual-responsive block copolymers and their ability to solubilize the drug doxorubicin is demonstrated using molecular dynamics simulations, coarse-grained force field simulations and self-consistent field theory.


2016 ◽  
Vol 18 (15) ◽  
pp. 10309-10319 ◽  
Author(s):  
Ji Wu ◽  
Xianghong Wang ◽  
Yongyun Ji ◽  
Linli He ◽  
Shiben Li

The electric field induces the new phases and shifts the phase boundaries in phase diagrams for the diblock copolymers.


2017 ◽  
Author(s):  
Sahithya S. Iyer ◽  
Madhusmita Tripathy ◽  
Anand Srivastava

AbstractLateral heterogeneities in bio-membranes play a crucial role in various physiological functions of the cell. Such heterogeneities lead to demixing of lipid constituents and formation of distinct liquid domains in the membrane. We study lateral heterogeneities in terms of the topological rearrangements of lipids, to identify liquid-liquid phase co-existence in model membranes. By quantifying the degree of non-affineness associated with individual lipid, we are able to characterize the liquid ordered (Lo) and liquid disordered (Ld) phases in model lipid bilayers, without any prior knowledge on chemical identity of the lipids. We explore the usage of this method on all atom and coarse-grained lipid bilayer trajectories. This method is helpful in defining the instantaneous Lo-Ld domain boundaries in complex multi-component bilayer systems. The characterization can also highlight the effect of line-active molecules on the phase boundaries and domain mixing. Overall, we propose a framework to explore the molecular origin of spatial and dynamical heterogeneity in bio-membranes systems, which can not only be exploited in computer simulation, but also in experiments.


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