Grassl, Markus Quantumness, Tomography, Entanglement, and Codes, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;
1612.04504.pdf (Preprint), 235KB
Li, Y., Han, M., Grassl, M., & Zeng, B. (2017). Invariant Perfect Tensors. New Journal of Physics, 19: 063029. doi:10.1088/1367-2630/aa7235.