2 papers
cond-mat.str-el2024
Low-lying excited states quantum entanglement and continuous quantum phase transitions: The criticality of a one-dimensional deconfined critical point
Yan-Chao Li, Yuan-Hang Zhou, Yuan Zhang +1
From the perspective of low-lying excited states, we study the deconfined quantum critical point (DQCP) in a one-dimensional quantum spin chain by means of the entanglement entropy…
quant-ph2024
Multipartite entanglement serves as a faithful detector for quantum phase transitions
Y. C. Li, Y. H. Zhou, Y. Zhang +2
We investigate quantum phase transitions in various spin chain systems using the multipartite entanglement measure based on the monogamy inequality of squared entanglemen…