A differential identity for Green functions

Details A differential identity for Green functions A differential identity for Green functions

2006-02-15

arxiv.org/abs/cond-mat/0602347v1

Journal of Mathematical Chemistry 44, 4 (2008) 918-937

Physics

Condensed Matter

Strongly Correlated Electrons

14 pages

Scientific paper

10.1007/s10910-008-9353-z

If P is a differential operator with constant coefficients, an identity is derived to calculate the action of exp(P) on the product of two functions. In many-body theory, P describes the interaction Hamiltonian and the identity yields a hierarchy of Green functions. The identity is first derived for scalar fields and the standard hierarchy is recovered. Then the case of fermions is considered and the identity is used to calculate the generating function for the Green functions of an electron system in a time-dependent external potential.

Affiliated with

Also associated with

No associations

Rating

A differential identity for Green functions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A differential identity for Green functions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A differential identity for Green functions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-254669