accelerated gradient methods 1asymptotic convergence rate 1hessian-driven dynamics 1lyapunov analysis 1strongly convex optimization 1
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quant-ph2026
Optimal Strategies for Multi-parameter Quantum Metrology
Linxuan Li, Zihao Hu, Longyun Chen +2
Estimating multiple unknown parameters simultaneously is essential for practical quantum sensing. However, it faces a fundamental challenge: the optimal strategy for estimating one…
quant-ph2025
Optimal quantum metrology under energy constraints
Longyun Chen, Yuxiang Yang
The traditional framework of quantum metrology commonly assumes unlimited access to resources, overlooking resource constraints in realistic scenarios. As such, the optimal strateg…
quant-ph2025
Optimal quantum sampling on distributed databases
Longyun Chen, Jingcheng Liu, Penghui Yao
Quantum sampling, a fundamental subroutine in numerous quantum algorithms, involves encoding a given probability distribution in the amplitudes of a pure state. Given the hefty cos…