Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 257202 |
| Fachzeitschrift | Physical Review Letters |
| Jahrgang | 112 |
| Ausgabenummer | 25 |
| Publikationsstatus | Veröffentlicht - 25 Juni 2014 |
Abstract
We use the matrix product state formalism to construct stationary scattering states of elementary excitations in generic one-dimensional quantum lattice systems. Our method is applied to the spin-1 Heisenberg antiferromagnet, for which we calculate the full magnon-magnon S matrix for arbitrary momenta and spin, the two-particle contribution to the spectral function, and higher order corrections to the magnetization curve. As our method provides an accurate microscopic representation of the interaction between elementary excitations, we envisage the description of low-energy dynamics of one-dimensional spin chains in terms of these particlelike excitations.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
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in: Physical Review Letters, Jahrgang 112, Nr. 25, 257202, 25.06.2014.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - S matrix from matrix product states
AU - Vanderstraeten, Laurens
AU - Haegeman, Jutho
AU - Osborne, Tobias J.
AU - Verstraete, Frank
PY - 2014/6/25
Y1 - 2014/6/25
N2 - We use the matrix product state formalism to construct stationary scattering states of elementary excitations in generic one-dimensional quantum lattice systems. Our method is applied to the spin-1 Heisenberg antiferromagnet, for which we calculate the full magnon-magnon S matrix for arbitrary momenta and spin, the two-particle contribution to the spectral function, and higher order corrections to the magnetization curve. As our method provides an accurate microscopic representation of the interaction between elementary excitations, we envisage the description of low-energy dynamics of one-dimensional spin chains in terms of these particlelike excitations.
AB - We use the matrix product state formalism to construct stationary scattering states of elementary excitations in generic one-dimensional quantum lattice systems. Our method is applied to the spin-1 Heisenberg antiferromagnet, for which we calculate the full magnon-magnon S matrix for arbitrary momenta and spin, the two-particle contribution to the spectral function, and higher order corrections to the magnetization curve. As our method provides an accurate microscopic representation of the interaction between elementary excitations, we envisage the description of low-energy dynamics of one-dimensional spin chains in terms of these particlelike excitations.
UR - http://www.scopus.com/inward/record.url?scp=84903512405&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.112.257202
DO - 10.1103/PhysRevLett.112.257202
M3 - Article
AN - SCOPUS:84903512405
VL - 112
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 25
M1 - 257202
ER -