3 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…
quant-ph2023
Excited stated quantum phase transitions and the entropy of the work distribution in the anharmonic Lipkin-Meshkov-Glick model
Haiting Zhang, Yifan Qian, Zhen-Xia Niu +1
Studying the implications and characterizations of the excited state quantum phase transitions (ESQPTs) would enable us to understand various phenomena observed in quantum many bod…