Tensor Renormalization of Quantum Many-Body Systems Using Projected Entangled Simplex States
Z. Y. Xie, Jialin Chen, Ji-Feng Yu +3 more
Tensor networks are used to represent the wave functions of quantum many-body systems, but the standard approaches only consider two-body entanglement and do not work well for ``frustrated'' systems, where the underlying lattice geometry makes three- or many-body entanglement also important. A new tensor-network approach based on a novel tensor concept for describing such ``simplex'' entanglement shows great promise.
arXiv:1307.5696•Physical Review X•Feb 26, 2014•147 citations