17 citations · 34 across the 13 of their papers we have counts for
13 papers
Testing the Transverse Scalar Mode of Gravitational Quantum Field Theory with Taiji and LISA
Cong Xu, Yong Tang, Yue-Liang Wu
Space-based gravitational-wave (GW) detectors, including LISA and Taiji, offer unprecedented access to regimes where alternative theories of gravity may deviate from General Relati…
Quantum average correlations and complementarity relations via metric-adjusted skew information
Xiaoyu Ma, Qing-Hua Zhang, Cong Xu
We investigate quantum average correlations and complementarity relations based on metric-adjusted skew information. Several natural averaging procedures are considered, including…
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…
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…
Probing Gravitational Quantum Field Theory through Polarization Fingerprints of Gravitational Waves
Cong Xu, Hong-Bo Jin, Yue-Liang Wu
Gravitational Quantum Field Theory (GQFT) has been proposed as a candidate framework to reconcile general relativity with quantum field theory, and a distinctive imprint on gravita…
Tightening the entropic uncertainty relations with quantum memory in a multipartite scenario
Cong Xu, Qing-Hua Zhang, Tao Li +1
The quantum uncertainty principle stands as a cornerstone and a distinctive feature of quantum mechanics, setting it apart from classical mechanics. We introduce a tripartite quant…
Uncertainty of quantum channels based on symmetrized \r{ho}-absolute variance and modified Wigner-Yanase skew information
Cong Xu, Qing-Hua Zhang, Shao-Ming Fei
We present the uncertainty relations in terms of the symmetrized \r{ho}-absolute variance, which generalizes the uncertainty relations for arbitrary operator (not necessarily Hermi…
Uncertainty relations based on the -absolute variance for quantum channels
Cong Xu, Wen Zhou, Qing-Hua Zhang +1
Uncertainty principle reveals the intrinsic differences between the classical and quantum worlds, which plays a significant role in quantum information theory. By using -absolut…
Summation and product forms of uncertainty relations based on metric-adjusted skew information
Cong Xu, Qing-Hua Zhang, Shao-Ming Fei
Uncertainty principle is one of the most essential features in quantum mechanics and plays profound roles in quantum information processing. We establish tighter summation form unc…
Tighter sum uncertainty relations via weighted Wigner-Yanase-Dyson skew information
Cong Xu, Zhaoqi Wu, Shao-Ming Fei
We establish tighter uncertainty relations for arbitrary finite observables via weighted Wigner-Yanase-Dyson (WWYD) skew information. The results are also applic…
Tighter uncertainty relations based on modified weighted Wigner-Yanase-Dyson skew information of quantum channels
Cong Xu, Zhaoqi Wu, Shao-Ming Fei
We use a novel formation to illustrate the () modified weighted Wigner-Yanase-Dyson (() MWWYD) skew information of quantum channels. By using operator norm inequaliti…
Uncertainty of quantum channels via modified generalized variance and modified generalized Wigner-Yanase-Dyson skew information
Cong Xu, Zhaoqi Wu, Shao-Ming Fei
Uncertainty relation is a fundamental issue in quantum mechanics and quantum information theory. By using modified generalized variance (MGV), and modified generalized Wigner-Yanas…