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6 papers · 2 filters
Quantum average correlation based on average coherence
Xiaoyu Ma, Qing-Hua Zhang, Cong Xu
This paper studies the quantification and structural properties of quantum average correlation based on average coherence. Motivated by two mathematically equivalent approaches to…
Coherence dynamics in quantum algorithm for linear systems of equations
Linlin Ye, Zhaoqi Wu, Shao-Ming Fei
Quantum coherence is a fundamental issue in quantum mechanics and quantum information processing. We explore the coherence dynamics of the evolved states in HHL quantum algorithm f…
Tsallis relative entropy of coherence dynamics in Grover's search algorithm
Linlin Ye, Zhaoqi Wu, Shao-Ming Fei
Quantum coherence plays a central role in Grover's search algorithm. We study the Tsallis relative entropy of coherence dynamics of the evolved state in Grover's search algorit…
Coherence and entanglement dynamics in Shor's algorithm
Linlin Ye, Zhaoqi Wu, Shao-Ming Fei
Shor's algorithm outperforms its classical counterpart in efficient prime factorization. We explore the coherence and entanglement dynamics of the evolved states within Shor's algo…
Tighter entropic uncertainty relations in the presence of quantum memories for complete sets of mutually unbiased bases
Qing-Hua Zhang, Cong Xu, Jing-Feng Wu +1
Entropic uncertainty relations provide an information-theoretic framework for quantifying the fundamental indeterminacy inherent in quantum mechanics. We propose more stringent qua…
Variational Quantum Algorithm for Constrained Combinatorial Optimization Problems
Hui-Min Li, Yuan-Liang Han, Zhi-Xi Wang +1
While variational quantum algorithms (VQAs) have demonstrated considerable success in unconstrained optimization, their application to constrained combinatorial problems face a tra…