3.7 Analytical Continuation

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 [185]. We followed here the formulation by LANGRETH [206]. In this section we are only concerned with temporal variables, therefore, spatial variables have been suppressed.

Subsections M. Pourfath: Numerical Study of Quantum Transport in Carbon Nanotube-Based Transistors