THE MEAN FIELD THEORY AT FINITE TEMPERATURE FROM NUCLEAR PHYSICS TO HIGH-TC SUPERCONDUCTIVITY

1989 ◽  
pp. 77-87
Author(s):  
Kosai Tanabe
Keyword(s):  
Field Theory ◽  
Finite Temperature ◽  
Nuclear Physics ◽  
Mean Field Theory ◽  
Mean Field ◽  
High Tc ◽  
High Tc Superconductivity ◽  
The Mean

GREEN FUNCTIONS IN t-J MODEL OF HIGH-Tc SUPERCONDUCTIVITY

1994 ◽  
Vol 08 (22) ◽  
pp. 3137-3155 ◽  
Author(s):  
VAN HIEU NGUYEN
Keyword(s):  
Real Time ◽  
Finite Temperature ◽  
Mean Field ◽  
Field Approximation ◽  
Mean Field Approximation ◽  
Green Functions ◽  
Imaginary Time ◽  
High Tc ◽  
High Tc Superconductivity ◽  
The Mean

The explicit expressions of the imaginary time normal and anomalous two–point Green functions in the t-J model of high-T c superconductivity without the single occupation constraint as well as those of the real time ones at a finite temperature are derived in the mean field approximation. The possible applications of these results are outlined.

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
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