scholarly journals Current–current correlation function in the presence of chemical potential and magnetic field

2017 ◽  
Vol 52 (2) ◽  
pp. 105-109
Author(s):  
E. A. Apresyan
Keyword(s):  
Magnetic Field ◽  
Correlation Function ◽  
Chemical Potential ◽  
Current Correlation Function ◽  
Current Correlation

Current–current correlation function in 3D massive Dirac theory with chemical potential

2015 ◽  
Vol 30 (07) ◽  
pp. 1550035 ◽  
Author(s):  
E. Apresyan ◽  
Sh. Khachatryan ◽  
A. Sedrakyan
Keyword(s):  
Correlation Function ◽  
Chemical Potential ◽  
Gauge Fields ◽  
Zero Energy ◽  
Dirac Theory ◽  
Current Correlation Function ◽  
Current Correlation ◽  
Half Filling ◽  
External Gauge ◽  
Physical Quantities

The response of fermionic system to external gauge fields is defined by current–current correlation function Πμν(q, q0). Transport properties of different physical quantities are determined by zero energy–momentum limit of it. As it is known close to half-filling the physics of graphene is described by (2+1)-dimensional Dirac theory. In this paper, we calculate current–current correlation function in Dirac theory in a presence of chemical potential η and gap m.

Peculiarities of time dependence of the current–current correlation function

2003 ◽  
Vol 118 (23) ◽  
pp. 10382-10386 ◽  
Author(s):  
T. V. Lokotosh ◽  
N. P. Malomuzh ◽  
K. S. Shakun
Keyword(s):  
Correlation Function ◽  
Time Dependence ◽  
Current Correlation Function ◽  
Current Correlation
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