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quant-ph2021
Improving the Precision of Optical Metrology by Detecting Fewer Photons
Peng Yin, Wen-Hao Zhang, Liang Xu +13
In optical metrological protocols to measure physical quantities, it is, in principle, always beneficial to increase photon number to improve measurement precision. However, practi…
quant-ph2018★ 2 cited
Topological indexes in symmetry preserving dynamics
Ze-Gang Liu, Long Xiong, Beibing Huang +2
The quench dynamics of topological phases have received intensive investigations in recent years. In this work, we prove exactly that the topological invariants for both $\mathbb{Z…