11 papers
Mean-State Entropy Hierarchies and Classical Communication through Quantum Convolutions
Chunhe Xiong, Sunho Kim, Qing-hua Zhang +2
Quantum convolution provides a discrete-variable analogue of classical convolution, with the mean state capturing the stabilizer structure preserved under repeated convolution. We…
Coherence dynamics in Simon's quantum algorithm
Linlin Ye, Zhaoqi Wu, Shao-Ming Fei
Quantum coherence plays a pivotal role in quantum algorithms. We study the coherence dynamics of the evolved states in Simon's quantum algorithm based on Tsallis relative entr…
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…
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…
Quantifying nonclassical correlations relative to local channels
Cong Xu, Tao Li, Ruonan Ren +2
Nonclassical correlations are significant physical resources with extensive applications in quantum information processing. We introduce the modified Wigner-Yanase-Dyson skew infor…