Block-block entanglement and quantum phase transitions in the one-dimensional extended Hubbard model
Block-block entanglement and quantum phase transitions in the one-dimensional extended Hubbard model
In this paper, we study block-block entanglement in the ground state of one-dimensional extended Hubbard model. Our results show that the phase diagram derived from the block-block entanglement manifests richer structure than that of the local (single site) entanglement because it comprises nonlocal correlation. Besides phases characterized by the charge-density-wave, …