Field dependent quasiparticles in a strongly correlated local system II

Details Field dependent quasiparticles in a strongly correlated local system II Field dependent quasiparticles in a strongly correlated local system II

2007-05-25

arxiv.org/abs/0705.3818v1

Phys. Rev. B 76 (2007), 035119

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 9 figures

Scientific paper

10.1103/PhysRevB.76.035119

We extend the renormalized quasiparticle description of the symmetric Anderson model in a magnetic field $H$, developed in earlier work, to the non-symmetric model. The renormalized parameters are deduced from the low energy NRG fixed point for arbitrary field values. We find quasiparticle resonance widths, $\tilde\Delta_\sigma(H)$, which depend in general on the spin $\sigma$ as well as $H$. The low temperature static properties can be expressed completely in terms of these parameters, which can also be used as inputs for a renormalized perturbation theory. We show that taking into account repeated quasiparticle scattering gives results for the longitudinal and transverse dynamic spin susceptibilities which are in very good agreement with those obtained from direct NRG calculations.

Affiliated with

Also associated with

No associations

Rating

Field dependent quasiparticles in a strongly correlated local system II 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 Field dependent quasiparticles in a strongly correlated local system II, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Field dependent quasiparticles in a strongly correlated local system II will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-680541