Boson decay and the dynamical structure factor for the XXZ chain at finite magnetic field

Details Boson decay and the dynamical structure factor for the XXZ chain at finite magnetic field Boson decay and the dynamical structure factor for the XXZ chain at finite magnetic field

2007-05-23

arxiv.org/abs/0705.3312v1

Physica B 403, 1520 (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

2 pages, 2 figures, proceedings SCES '07, Houston

Scientific paper

10.1016/j.physb.2007.10.304

We study the longitudinal dynamical structure factor $S^{zz}(q,\omega)$ for the anisotropic spin-1/2 (XXZ) chain at finite magnetic field using bosonization. The leading irrelevant operators in the effective bosonic model stemming from band curvature describe boson decay processes and lead to a high-frequency tail and a finite width $\gamma_q$ of the on-shell peak for $S^{zz}(q,\omega)$. We use the Bethe ansatz to show that $\gamma_q\sim q^2$ for $q\ll 1$ and to calculate the amplitudes of the leading irrelevant operators in the effective field theory.

Affiliated with

Also associated with

No associations

Rating

Boson decay and the dynamical structure factor for the XXZ chain at finite magnetic field 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 Boson decay and the dynamical structure factor for the XXZ chain at finite magnetic field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Boson decay and the dynamical structure factor for the XXZ chain at finite magnetic field will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-401333