Verstraete, Frank Theory, Max Planck Institute of Quantum Optics, Max Planck Society;
Cirac, J. Ignacio Theory, Max Planck Institute of Quantum Optics, Max Planck Society;
Verstraete, F., Martín-Delgado, M. A., & Cirac, J. I. (2004). Diverging entanglement length in gapped quantum spin systems. Physical Review Letters, 92(8): 087201. doi:10.1103/PhysRevLett.92.087201.