2 papers
quant-ph2025
Krylov shadow tomography: Efficient estimation of quantum Fisher information
Da-Jian Zhang, D. M. Tong
Efficiently estimating the quantum Fisher information (QFI) is pivotal in quantum information science but remains an outstanding challenge for large systems due to its high nonline…
quant-ph2024
Inferring physical properties of symmetric states from the fewest copies
Da-Jian Zhang, D. M. Tong
Learning physical properties of high-dimensional states is crucial for developing quantum technologies but usually consumes an exceedingly large number of samples which are difficu…