Quantum dynamics of an Ising spin-chain in a random transverse field

Details Quantum dynamics of an Ising spin-chain in a random transverse field Quantum dynamics of an Ising spin-chain in a random transverse field

2006-07-27

arxiv.org/abs/cond-mat/0607703v3

Phys. Rev. B 74, 172414 (2006).

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages and 6 eps figures; minor clarifications were made; the text was shortened to add an additional figure

Scientific paper

10.1103/PhysRevB.74.172414

We consider an Ising spin-chain in a random transverse magnetic field and compute the zero temperature wave vector and frequency dependent dynamic structure factor numerically by using Jordan-Wigner transformation. Two types of distributions of magnetic fields are introduced. For a rectangular distribution, a dispersing branch is observed, and disorder tends to broaden the dispersion peak and close the excitation gap. For a binary distribution, a non-dispersing branch at almost zero energy is recovered. We discuss the relationship of our work to the neutron scattering measurement in $\mathrm{LiHoF_4}$.

Affiliated with

Also associated with

No associations

Rating

Quantum dynamics of an Ising spin-chain in a random transverse 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 Quantum dynamics of an Ising spin-chain in a random transverse field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum dynamics of an Ising spin-chain in a random transverse field will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-250930