Slave-boson approach to the infinite-U Anderson-Holstein impurity model

Details Slave-boson approach to the infinite-U Anderson-Holstein impurity model Slave-boson approach to the infinite-U Anderson-Holstein impurity model

2004-08-31

arxiv.org/abs/cond-mat/0408670v1

Physical Review B, Vol. 70, 085114 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

12pages, 3 figures. Published in Physical Review B

Scientific paper

10.1103/PhysRevB.70.085114

The infinite-$U$ Anderson-Holstein impurity model is studied with a focus on the interplay between the strong electron correlation and the weak electron-phonon interaction. The slave boson method has been employed in combination with the large degeneracy expansion (1/N) technique. The charge and spin susceptibilities and the phonon propagator are obtained in the approximation scheme where the saddle point configuration and the Gaussian 1/N fluctuations are taken into account. The spin susceptibility is found not to be renormalized by electron-phonon interaction, while the charge susceptibility is renormalized. From the renormalized charge susceptibility the Kondo temperature is found to increase by the electron-phonon interaction. It turns out that the bosonic 1/N Gaussian fluctuations play a very crucial role, in particular, for the phonon propagator.

Affiliated with

Also associated with

No associations

Rating

Slave-boson approach to the infinite-U Anderson-Holstein impurity model 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 Slave-boson approach to the infinite-U Anderson-Holstein impurity model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Slave-boson approach to the infinite-U Anderson-Holstein impurity model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-689067