The contour representation is rather impractical in calculations, and one
prefers to work with real time integrals. The procedure of converting the
contour into real-time integrals is called analytic
continuation . We followed here the formulation by
In this section we are only concerned with temporal
variables, therefore, spatial variables have been suppressed.
3.7 Analytical Continuation
M. Pourfath: Numerical Study of Quantum Transport in Carbon Nanotube-Based Transistors