COMPUTER SIMULATION AND MEAN FIELD CALCULATION OF PHASE DIAGRAM AND ADIABATIC DEMAGNETIZATION PATHS FOR AN ANTIFERROMAGNET

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-2053-C8-2054
Author(s):  
H. E. Viertiö ◽  
O. G. Mouritsen ◽  
P.-A. Lindgård
Keyword(s):  
Phase Diagram ◽  
Computer Simulation ◽  
Mean Field ◽  
Field Calculation ◽  
Adiabatic Demagnetization

Mesophases of Regularly Branched Copolymers

2001 ◽  
Vol 710 ◽  
Author(s):  
Galen T. Pickett
Keyword(s):  
Phase Diagram ◽  
Block Copolymers ◽  
Path Analysis ◽  
Mean Field ◽  
Tree Structure ◽  
Field Calculation ◽  
Branched Copolymers ◽  
Classical Path ◽  
Self Consistent

ABSTRACTThe phase diagram of A/B block copolymers is determined when the A block is a flexible, linear homopolymer, and the B block has a regularly branched tree structure with G generations. The predictions of a classical-path analysis and a lattice self-consistent mean field calculation are in general agreement. The phase diagram is considerably skewed toward keeping the A blocks inside cylindrical or spherical cores with the branched block forming a corona. There is little, if any, tendency for the branched arms to fold back to facilitate packing.

Computer Simulation of an Synthetic Ultraviolet Absorbent in the Interface of DMB and DMF

2010 ◽  
Vol 146-147 ◽  
pp. 966-971
Author(s):  
Qi Hua Jiang ◽  
Hai Dong Zhang ◽  
Bin Xiang ◽  
Hai Yun He ◽  
Ping Deng
Keyword(s):  
Computer Simulation ◽  
Computer Simulations ◽  
Density Functional ◽  
Density Functional Method ◽  
Mean Field ◽  
Functional Method ◽  
Dynamic Density ◽  
Interface Phase ◽  
Simulation Results

This work studies the aggregation of an synthetic ultraviolet absorbent, named 2-hydroxy-4-perfluoroheptanoate-benzophenone (HPFHBP), in the interface between two solvents which can not completely dissolve each other. The aggregation is studied by computer simulations based on a dynamic density functional method and mean-field interactions, which are implemented in the MesoDyn module and Blend module of Material Studios. The simulation results show that the synthetic ultraviolet absorbent diffuse to the interface phase and the concentration in the interface phase is greater than it in the solvents phase.

Mean-field phase diagram of cold lattice bosons in disordered potentials

2007 ◽  
Vol 76 (1) ◽  
Author(s):  
P. Buonsante ◽  
V. Penna ◽  
A. Vezzani ◽  
P. B. Blakie
Keyword(s):  
Phase Diagram ◽  
Mean Field ◽  
Field Phase

Relaxation of a tethered polymer using dynamic mean field calculation

2002 ◽  
Vol 117 (21) ◽  
pp. 9959-9960 ◽  
Author(s):  
Kenji Furuichi ◽  
Chisato Nonomura ◽  
Toshihiro Kawakatsu ◽  
Masao Doi
Keyword(s):  
Mean Field ◽  
Field Calculation

scholarly journals Phase diagram of the selfinteracting particle­-antiparticle boson system

2021 ◽  
Vol 29 (1) ◽  
pp. 5-14
Author(s):  
D. Anchishkin ◽  
V. Gnatovskyy ◽  
D. Zhuravel ◽  
V. Karpenko
Keyword(s):  
Phase Transition ◽  
Phase Diagram ◽  
Phase Diagrams ◽  
Canonical Ensemble ◽  
Bose Condensate ◽  
Mean Field ◽  
Thermodynamic Quantities ◽  
Boson System ◽  
The Mean

A system of interacting relativistic bosons at finite temperatures and isospin densities is studied within the framework of the Skyrme­like mean­field model. The mean field contains both attractive and repulsive terms. The consideration is taken within the framework of the Canonical Ensemble and the isospin­density dependencies of thermodynamic quantities is obtained, in particular as the phase diagrams. It is shown that in such a system, in addition to the formation of a Bose­Einstein condensate, a liquid­gas phase transition is possible. We prove that the multi­boson system develops the Bose condensate for particles of high­density component only.

Phase Diagram of Water from Computer Simulation

2004 ◽  
Vol 92 (25) ◽  
Author(s):  
E. Sanz ◽  
C. Vega ◽  
J. L. F. Abascal ◽  
L. G. MacDowell
Keyword(s):  
Phase Diagram ◽  
Computer Simulation

η-PAIRING SUPERCONDUCTIVITY IN THE NEGATIVE-U HUBBARD MODEL: EFFECT OF FLUCTUATIONS AND DISORDER

1994 ◽  
Vol 08 (15) ◽  
pp. 2041-2058
Author(s):  
JÜRGEN STEIN
Keyword(s):  
Phase Diagram ◽  
Asymptotic Expansion ◽  
Hubbard Model ◽  
Strong Coupling ◽  
Mean Field ◽  
Higher Order ◽  
Field Phase ◽  
Effective Pair ◽  
The Mean ◽  
Pair Hopping

We have studied the influence of singular fluctuations around the mean-field solution as well as higher order contributions to the geometry controlled asymptotic expansion of the propagators on η-pairing superconductivity in the strong coupling negative-U Hubbard model in the presence of unpaired electrons. The modifications of the mean-field results due to the introduction of disorder and allowance for finite U are also calculated. Besides the singularities already present in the O(2) nonlinear σ-model we find a filling-depending singular depression of the repulsive effective pair-hopping interaction which strongly alters the mean-field phase diagram and appears to suppress the η-pairing phase near the band edges.

Mean‐Field Calculation of M Z for Randomly Branched Condensation Polymers

2019 ◽  
Vol 57 (21) ◽  
pp. 1415-1422
Author(s):  
Roy Odle ◽  
Joseph D. Mitchell ◽  
John T. Bendler
Keyword(s):  
Mean Field ◽  
Field Calculation ◽  
Condensation Polymers
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