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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 uncertainty relations based on metric-adjusted skew information…

量子物理 · 物理学 2024-06-26 Cong Xu , Qing-Hua Zhang , Shao-Ming Fei

Skew information is a pivotal concept in quantum information, quantum measurement, and quantum metrology. Further studies have lead to the uncertainty relations grounded in metric-adjusted skew information. In this work, we present an…

量子物理 · 物理学 2023-08-01 Xiaoli Hu , Naihuan Jing

The uncertainty principle is one of the fundamental features of quantum mechanics and plays a vital role in quantum information processing. We study uncertainty relations based on metric-adjusted skew information for finite quantum…

量子物理 · 物理学 2023-02-21 Qing-Hua Zhang , Jing-Feng Wu , Xiaoyu Ma , Shao-Ming Fei

In this paper, we first provide three general norm inequalities, which are used to give new uncertainty relations of any finite observables and quantum channels via metric-adjusted skew information. The results are applicable to its special…

量子物理 · 物理学 2023-04-27 Hui Li , Ting Gao , Fengli Yan

We study the sum uncertainty relations based on variance and skew information for arbitrary finite N quantum mechanical observables. We derive new uncertainty inequalities which improve the exiting results about the related uncertainty…

量子物理 · 物理学 2021-11-18 Qing-Hua Zhang , Shao-Ming Fei

We study sum uncertainty relations for arbitrary finite $N$ quantum mechanical observables. Some uncertainty inequalities are presented by using skew information introduced by Wigner and Yanase. These uncertainty inequalities are nontrivial…

量子物理 · 物理学 2016-06-07 Bin Chen , Shao-Ming Fei , Gui-Lu Long

By revisiting the mathematical foundation of the uncertainty relation, skew information-based uncertainty sequences are developed for any two quantum channels. A reinforced version of the Cauchy-Schwarz inequality is adopted to improve the…

量子物理 · 物理学 2023-10-11 Xiaoli Hu , Naihong Hu , Bing Yu , Naihuan Jing

Prompted by the open questions in Gibilisco [Int. J. Software Informatics, 8(3-4): 265, 2014], in which he introduced a family of measurement-induced quantum uncertainty measures via metric adjusted skew informations, we investigate these…

量子物理 · 物理学 2018-04-13 Liang Cai

We present uncertainty relations based on Wigner--Yanase--Dyson skew information with quantum memory. Uncertainty inequalities both in product and summation forms are derived. \mbox{It is} shown that the lower bounds contain two terms: one…

量子物理 · 物理学 2018-02-26 Jun Li , Shao-Ming Fei

We investigate quantum average correlations and complementarity relations based on metric-adjusted skew information. Several natural averaging procedures are considered, including complete families of mutually unbiased bases, all…

量子物理 · 物理学 2026-04-28 Xiaoyu Ma , Qing-Hua Zhang , Cong Xu

Quantum coherence is an important quantum resource which plays a pivotal role in the field of quantum information. Based on metric adjusted skew information, we define a measure of quantum uncertainty to study average coherence under…

量子物理 · 物理学 2026-04-23 Baolong Cheng , Linlin Ye , Zhaoqi Wu

Uncertainty principle is the basis of quantum mechanics. It reflects the basic law of the movement of microscopic particles. Wigner-Yanase skew information, as a measure of quantum uncertainties, is used to characterize the intrinsic…

量子物理 · 物理学 2021-05-11 Limei Zhang , Ting Gao , Fengli Yan

Uncertainty relations and complementarity relations are core issues in quantum mechanics and quantum information theory. By use of the generalized Wigner-Yanase-Dyson (GWYD) skew information, we derive several uncertainty and…

量子物理 · 物理学 2021-08-06 Huaijing Huang , Zhaoqi Wu , Shao-Ming Fei

We present a new uncertainty relation by defining a measure of uncertainty based on skew information. For bipartite systems, we establish uncertainty relations with the existence of a quantum memory. A general relation between quantum…

量子物理 · 物理学 2017-01-10 Zhihao Ma , Zhihua Chen , Shaoming Fei

We report a refinement of Robertson-Schroedinger uncertainty relation via Wigner-Yanase skew information. Besides the well known quantum uncertainty arising from the noncommutativity of observables, there is classical uncertainty arising…

量子物理 · 物理学 2013-03-27 Sixia Yu , C. H. Oh

We introduce ($\alpha,\beta,\gamma$) weighted Wigner-Yanase-Dyson (($\alpha,\beta,\gamma$) WWYD) skew information and ($\alpha,\beta,\gamma$) modified weighted Wigner-Yanase-Dyson (($\alpha,\beta,\gamma$) MWWYD) skew information. We explore…

量子物理 · 物理学 2022-08-16 Cong Xu , Zhaoqi Wu , Shao-Ming Fei

Metric adjusted skew information, induced from quantum Fisher information, is a well-known family of resource measures in the resource theory of asymmetry. However, its asymptotic rates are not valid asymmetry monotone since it has an…

量子物理 · 物理学 2023-05-24 Koji Yamaguchi , Hiroyasu Tajima

Uncertainty relation is a core issue in quantum mechanics and quantum information theory. We introduce modified generalized Wigner-Yanase-Dyson (MGWYD) skew information and modified weighted generalizedWigner-Yanase-Dyson (MWGWYD) skew…

量子物理 · 物理学 2020-04-27 Zhaoqi Wu , Lin Zhang , Jianhui Wang , Xianqing Li-Jost , Shao-Ming Fei

We use a novel formation to illustrate the ($\alpha,\beta,\gamma$) modified weighted Wigner-Yanase-Dyson (($\alpha,\beta,\gamma$) MWWYD) skew information of quantum channels. By using operator norm inequalities, we explore the sum…

量子物理 · 物理学 2023-10-24 Cong Xu , Zhaoqi Wu , Shao-Ming Fei

We study quantum information inequalities and show that the basic inequality between the quantum variance and the metric adjusted skew information generates all the multi-operator matrix inequalities or Robertson type determinant…

数学物理 · 物理学 2008-10-29 Koenraad Audenaert , Liang Cai , Frank Hansen
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