Quantum critical scaling in a bond-alternating Heisenberg spin-1 chain

Anisotropic antiferromagnetic Heisenberg spin-1 chains exhibit a phase transition between two gapped phases driven by magnetic field. However, precisely at the quantum critical...各向异性反铁磁海森堡自旋-1链（Heisenberg spin-1 chains）会在外磁场的驱动下，于两类有能隙相之间发生相变。然而，其恰好处于量子临界……