scholarly journals Universal quantum criticality at finite temperature for two-dimensional disordered and clean dimerized spin- 12 antiferromagnets

2018 ◽  
Vol 98 (24) ◽  
Author(s):  
D.-R. Tan ◽  
F.-J. Jiang
Keyword(s):  
Finite Temperature ◽  
Quantum Criticality ◽  
Two Dimensional ◽  
Universal Quantum

scholarly journals MAGNETIC INSTABILITY IN A PARITY INVARIANT TWO-DIMENSIONAL FERMION SYSTEM

2000 ◽  
Vol 14 (14) ◽  
pp. 1441-1449 ◽  
Author(s):  
M. ELIASHVILI ◽  
G. TSITSISHVILI
Keyword(s):  
High Temperature ◽  
Temperature Regime ◽  
Ground State ◽  
Finite Temperature ◽  
Two Dimensional ◽  
Fermion System ◽  
Temperature Analysis ◽  
Magnetic Instability ◽  
High Temperature Regime

We consider the parity invariant QED2+1 where the matter is represented as a mixture of fermions with opposite spins. It is argued that the perturbative ground state of the system is unstable with respect to the formation of magnetized ground state. Carrying out the finite temperature analysis we show that the magnetic instability disappears in the high temperature regime.

scholarly journals Finite-temperature conductance signatures of quantum criticality in double quantum dots

2008 ◽  
Vol 78 (15) ◽  
Author(s):  
Luis G. G. V. Dias da Silva ◽  
Kevin Ingersent ◽  
Nancy Sandler ◽  
Sergio E. Ulloa
Keyword(s):  
Quantum Dots ◽  
Finite Temperature ◽  
Quantum Criticality ◽  
Double Quantum ◽  
Double Quantum Dots
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