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20232026
most citedToward Heisenberg Scaling in Non-Hermitian Metrology at the Quantum Regime

26 citations · 54 across the 8 of their papers we have counts for

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8 papers · 1 filter

quant-ph2026★ 3 cited

Experimental realization of Wheeler's delayed-choice experiment with dual selections

Xiaowan Yang, Xinglei Yu, Liangsheng Li +5

Wheeler's delayed-choice experiment demonstrates wave-particle duality of particles using different experimental configurations of a Mach-Zehnder interferometer. In a quantum versi…

quant-ph2026

Experimentally realized local-global tradeoff in quantum resources

Yue Dai, Zhiyu Wang, Xinzhi Zhao +2

The interconversion among different quantum resources has attracted considerable attention, exemplified by the tradeoff between coherence and entanglement. However, the relationshi…

quant-ph2026★ 10 cited

Factorization dynamics between quantum Fisher information and quantum coherence

Xinzhi Zhao, Xinglei Yu, Liangsheng Li +2

Quantum Fisher information (QFI) quantifies the sensitivity of a quantum state to a parameter change and plays a key role in quantum metrology. Meanwhile, quantum coherence is a cr…

quant-ph2026

Towards Robust Optimal Measurements Against Noise in Quantum Metrology

Xinglei Yu, Xinzhi Zhao, Liangsheng Li +4

Quantum parameter estimation utilizes quantum mechanical effects to attain higher measurement precision than classical schemes. In practical implementations, however, noise is inev…

quant-ph2025★ 5 cited

Yang-Lee edge singularity and quantum criticality in non-Hermitian PXP model

Wen-Yi Zhang, Meng-Yun Mao, Qing-Min Hu +3

We present a comprehensive theoretical framework for quantum criticality in the non-Hermitian detuned PXP model, and establish the complete phase diagram, which had remained elusiv…

quant-ph2025★ 26 cited

Toward Heisenberg Scaling in Non-Hermitian Metrology at the Quantum Regime

Xinglei Yu, Xinzhi Zhao, Liangsheng Li +4

Non-Hermitian quantum metrology, an emerging field at the intersection of quantum estimation and non-Hermitian physics, holds promise for revolutionizing precision measurement. Her…

quant-ph2025★ 10 cited

Experimental investigation of uncertainty relations for non-Hermitian operators

Xinzhi Zhao, Xinglei Yu, Wenting Zhou +4

Uncertainty relations for Hermitian operators have been confirmed through many experiments. However, previous experiments have only tested the special case of non-Hermitian operato…

quant-ph2023

Evolution equation for quantum coherence

Xinzhi Zhao, Jianwei Shao, Yi Zheng +2

Quantum coherence plays an important role in quantum resource theory, which is strongly related with entanglement. Similar to the entanglement evolution equation, we find the coher…