2 papers
quant-ph2025
Role of long-range interaction in critical quantum metrology
Zhen-Xia Niu, Qian Wang
Long-range interacting quantum systems are useful for improving the performance of various applications of quantum technologies. In this work, we carry out a detailed analysis of h…
cond-mat.quant-gas2024
Multifractality and excited-state quantum phase transition in ferromagnetic spin- Bose-Einstein condensates
Zhen-Xia Niu, Qian Wang
Multifractality of quantum states plays an important role for understanding numerous complex phenomena observed in different branches of physics. The multifractal properties of the…