Below-unitarity-threshold branch cut in the $$\left\langle {\bar qq} \right\rangle $$ coefficient of the axial-vector two-current correlation function

1993 ◽  
Vol 60 (2) ◽  
pp. 235-241 ◽  
Author(s):  
V. Elias ◽  
J. L. Murison ◽  
M. D. Scadron ◽  
T. G. Steele
Keyword(s):  
Correlation Function ◽  
Axial Vector ◽  
Current Correlation Function ◽  
Current Correlation ◽  
Branch Cut

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

Binary collision contribution to the longitudinal current correlation function of dense fluids: Numerical results

1998 ◽  
Vol 57 (5) ◽  
pp. 6195-6197 ◽  
Author(s):  
K. N. Pathak ◽  
S. Ranganathan ◽  
R. E. Johnson ◽  
R. K. Sharma ◽  
K. Tankeshwar
Keyword(s):  
Correlation Function ◽  
Binary Collision ◽  
Numerical Results ◽  
Dense Fluids ◽  
Longitudinal Current ◽  
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.

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