scholarly journals Lifting mean-field degeneracies in anisotropic classical spin systems

2015 ◽  
Vol 92 (15) ◽  
Author(s):  
Yuriy Sizyuk ◽  
Natalia B. Perkins ◽  
Peter Wölfle
Keyword(s):  
Mean Field ◽  
Spin Systems ◽  
Classical Spin

scholarly journals Critical exponents in mean-field classical spin systems

2019 ◽  
Vol 100 (3) ◽  
Author(s):  
Yoshiyuki Y. Yamaguchi ◽  
Debraj Das ◽  
Shamik Gupta
Keyword(s):  
Critical Exponents ◽  
Mean Field ◽  
Spin Systems ◽  
Classical Spin

scholarly journals Evidence of exactness of the mean-field theory in the nonextensive regime of long-range classical spin models

2000 ◽  
Vol 61 (17) ◽  
pp. 11521-11528 ◽  
Author(s):  
Sergio A. Cannas ◽  
A. C. N. de Magalhães ◽  
Francisco A. Tamarit
Keyword(s):  
Field Theory ◽  
Long Range ◽  
Mean Field Theory ◽  
Mean Field ◽  
Spin Models ◽  
Classical Spin ◽  
The Mean ◽  
Classical Spin Models

scholarly journals Geometric Integrators for Classical Spin Systems

1997 ◽  
Vol 133 (1) ◽  
pp. 160-172 ◽  
Author(s):  
Jason Frank ◽  
Weizhang Huang ◽  
Benedict Leimkuhler
Keyword(s):  
Spin Systems ◽  
Classical Spin ◽  
Geometric Integrators

scholarly journals Unconventional phase transitions in strongly anisotropic 2D (pseudo)spin systems

2018 ◽  
Vol 185 ◽  
pp. 08006
Author(s):  
Vitaly Konev ◽  
Evgeny Vasinovich ◽  
Vasily Ulitko ◽  
Yury Panov ◽  
Alexander Moskvin
Keyword(s):  
Magnetic Field ◽  
Monte Carlo ◽  
Phase Transitions ◽  
Ground State ◽  
Quantum Monte Carlo ◽  
Mean Field ◽  
Spin Systems ◽  
Field Approach ◽  
Generalized Mean

We have applied a generalized mean-field approach and quantum Monte-Carlo technique for the model 2D S = 1 (pseudo)spin system to find the ground state phase with its evolution under application of the (pseudo)magnetic field. The comparison of the two methods allows us to clearly demonstrate the role of quantum effects. Special attention is given to the role played by an effective single-ion anisotropy ("on-site correlation").

scholarly journals Snapshot Spectrum and Critical Phenomenon for Two-Dimensional Classical Spin Systems

2014 ◽  
Vol 83 (11) ◽  
pp. 114002 ◽  
Author(s):  
Yukinari Imura ◽  
Tsuyoshi Okubo ◽  
Satoshi Morita ◽  
Kouichi Okunishi
Keyword(s):  
Critical Phenomenon ◽  
Spin Systems ◽  
Two Dimensional ◽  
Classical Spin
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