scholarly journals Mean-field theory for symmetry-breaking Fermi surface deformations on a square lattice

2005 ◽  
Vol 72 (3) ◽  
Author(s):  
Hiroyuki Yamase ◽  
Vadim Oganesyan ◽  
Walter Metzner
Keyword(s):  
Field Theory ◽  
Symmetry Breaking ◽  
Fermi Surface ◽  
Mean Field Theory ◽  
Mean Field ◽  
Square Lattice ◽  
Surface Deformations

scholarly journals Mean-Field Theory of the Symmetry Breaking Model for X Chromosome Inactivation

2011 ◽  
Vol 191 ◽  
pp. 40-45 ◽  
Author(s):  
Antonio Scialdone ◽  
Mariano Barbieri ◽  
Deborah Pallotti ◽  
Mario Nicodemi
Keyword(s):  
Field Theory ◽  
Symmetry Breaking ◽  
X Chromosome ◽  
Mean Field Theory ◽  
Mean Field ◽  
X Chromosome Inactivation ◽  
Chromosome Inactivation

scholarly journals The dynamic magnetic behaviors of the Blume–Capel Ising bilayer system

2015 ◽  
Vol 29 (35n36) ◽  
pp. 1550236 ◽  
Author(s):  
Mehmet Ertaş
Keyword(s):  
Magnetic Field ◽  
Field Theory ◽  
Stochastic Dynamics ◽  
Mean Field Theory ◽  
Mean Field ◽  
Dynamic Equations ◽  
Square Lattice ◽  
Bilayer System ◽  
Dynamic Phase ◽  
Time Dependencies

The dynamic magnetic behaviors of the spin-1 Blume–Capel Ising bilayer system (BCIS) are studied in an oscillating external magnetic field on a two-layer square lattice by utilizing the mean field theory (MFT) based on Glauber-type stochastic dynamics [dynamic mean field theory (DMFT)]. The dynamic equations describing the time-dependencies of the average magnetizations are obtained with the Master equation. The dynamic phases in this system are found by solving these dynamic equations. The temperature dependence of the dynamic order parameters is examined to characterize the nature (continuous or discontinuous) of the phase transitions and to obtain the dynamic phase transition (DPT) points. The dynamic phase diagrams (DPDs) are shown for ferromagnetic/ferromagnetic, antiferromagnetic/ferromagnetic, antiferromagnetic/antiferromagnetic interactions in the plane of the reduced temperature versus magnetic field amplitude and they display dynamic tricritical and re-entrant behavior as well as the dynamic triple point (tp).

scholarly journals Cluster mean-field theory study of J1−J2Heisenberg model on a square lattice

2014 ◽  
Vol 26 (11) ◽  
pp. 115601 ◽  
Author(s):  
Yong-Zhi Ren ◽  
Ning-Hua Tong ◽  
Xin-Cheng Xie
Keyword(s):  
Field Theory ◽  
Mean Field Theory ◽  
Mean Field ◽  
Square Lattice
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