Properties of multi-particle Green and vertex functions within Keldysh formalism

Details Properties of multi-particle Green and vertex functions within Keldysh formalism Properties of multi-particle Green and vertex functions within Keldysh formalism

2009-02-13

arxiv.org/abs/0902.2350v3

J. Phys. A: Math. Theor. 43, 103001 (2010)

Physics

Condensed Matter

Strongly Correlated Electrons

[v3] - typos corrected, added journal reference

Scientific paper

10.1088/1751-8113/43/10/103001

The increasing interest in nonequilibrium effects in condensed matter theory motivates the adaption of diverse equilibrium techniques to Keldysh formalism. For methods based on multi-particle Green or vertex functions this involves a detailed knowledge of the real-time properties of those functions. In this paper, we derive general properties of fermionic and bosonic multi-particle Green and vertex functions for a stationary state described within Keldysh formalism. Special emphasis is put on the analytic properties associated with causality and on a detailed discussion of the Kubo-Martin-Schwinger conditions which characterise thermal equilibrium. Finally we describe how diagrammatic approximations and approximations within the functional renormalisation group approach respect these properties.

Affiliated with

Also associated with

No associations

Rating

Properties of multi-particle Green and vertex functions within Keldysh formalism 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 Properties of multi-particle Green and vertex functions within Keldysh formalism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Properties of multi-particle Green and vertex functions within Keldysh formalism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-357818