activity
20022008
most citedOn Haag Duality for Pure States of Quantum Spin Chain

7 citations · 8 across the 3 of their papers we have counts for

collaborators
Showing 2008 · math-phShow all

1 paper · 2 filters

math-ph2008★ 1 cited

On Spectral Gap,U(1) Symmetry and Split Property in Quantum Spin Chains

Taku Matsui

We consider a class of ground states for quantum spin chains on an integer lattice. First we show that presence of the spectral gap between the ground state energy and the rest of…