Dimerization in Quantum Spin Chains with O(n) Symmetry
Artikel i vetenskaplig tidskrift, 2021

We consider quantum spins with S >= 1, and two-body interactions with O (2S + 1) symmetry. We discuss the ground state phase diagram of the one-dimensional system. We give a rigorous proof of dimerization for an open region of the phase diagram, for S sufficiently large. We also prove the existence of a gap for excitations.

Författare

Jakob Björnberg

Chalmers, Matematiska vetenskaper, Analys och sannolikhetsteori

Göteborgs universitet

Peter Muhlbacher

The University of Warwick

Bruno Nachtergaele

University of California at Davis

Daniel Ueltschi

The University of Warwick

Communications in Mathematical Physics

0010-3616 (ISSN) 1432-0916 (eISSN)

Vol. In Press

Ämneskategorier

Geometri

Annan fysik

DOI

10.1007/s00220-021-04148-1

Mer information

Senast uppdaterat

2021-08-16