Vertex correction and Ward identity in U(1) gauge theory with a Fermi surface
Abstract
We show that introduction of vertex corrections in the fully self-consistent ladder approximation does not modify dynamics of spinons and gauge fluctuations in the U(1) gauge theory with Fermi surface.
- Publication:
-
Physical Review B
- Pub Date:
- August 2010
- DOI:
- 10.1103/PhysRevB.82.075129
- arXiv:
- arXiv:1004.3442
- Bibcode:
- 2010PhRvB..82g5129K
- Keywords:
-
- 71.10.Hf;
- 71.27.+a;
- Non-Fermi-liquid ground states electron phase diagrams and phase transitions in model systems;
- Strongly correlated electron systems;
- heavy fermions;
- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- Phys.Rev.B82:075129,2010