19 citations · 55 across the 6 of their papers we have counts for
12 papers · 1 filter
Superiority of Krylov shadow tomography in estimating quantum Fisher information: From bounds to exactness
Yuan-Hao Wang, Da-Jian Zhang
Estimating the quantum Fisher information (QFI) is a crucial yet challenging task with widespread applications across quantum science and technologies. The recently proposed Krylov…
Survival of Hermitian Criticality in the Non-Hermitian Framework
Fei Wang, Guoying Liang, Zecheng Zhao +3
In this work, we investigate many-body phase transitions in a one-dimensional anisotropic XY model subject to a complex-valued transverse field. Within the biorthogonal framework,…
Strict hierarchy of optimal strategies for global estimations: Linking global estimations with local ones
Zhao-Yi Zhou, Jing-Tao Qiu, Da-Jian Zhang
A crucial yet challenging issue in quantum metrology is to ascertain the ultimate precision achievable in estimation strategies. While there are two paradigms of estimations, local…
Non-Hermitian Floquet Topological Matter -- A Review
Longwen Zhou, Da-Jian Zhang
The past few years have witnessed a surge of interest in non-Hermitian Floquet topological matters due to their exotic properties resulting from the interplay between driving field…
Correlation-induced coherence and its use in detecting quantum phase transitions
Ming-Ming Du, Abdul Sattar Khan, Zhao-Yi Zhou +1
The past two decades have witnessed a surge of interest in exploring correlation and coherence measures to investigate quantum phase transitions (QPTs). Here, motivated by the cont…
Visualizing quantum phase transitions in the XXZ model via the quantum steering ellipsoid
Ming-Ming Du, Da-Jian Zhang, Zhao-Yi Zhou +1
The past two decades have witnessed a surge of interest in borrowing tools from quantum information theory to investigate quantum phase transitions (QPTs). The best known examples…