19 citations · 33 across the 13 of their papers we have counts for
13 papers
Schmidt-number robustness as a unified quantifier of high dimensional entanglement in Buscemi nonlocality
Xian Shi
High-dimensional entanglement, captured by the Schmidt number, underpins advantages in quantum information tasks, yet a unified resource-theoretic description across different Busc…
Quantifying Coherence and Genuine Multipartite Entanglement : A Framework Based on Witness Operators and Frobenius Norm Distance
Mingyu Liu, Xian Shi
Quantifying the entanglement and coherence of quantum systems is a topic of significant theoretical and practical interest. In this paper, we propose a method to evaluate lower bou…
The Deimginarity Cost of Quantum States
Xian Shi
Here we address a task denoted as deimaginarity, which is to transform a state into a real state with the aid of random covariant-free unitary operations. We consider the minimum c…
Entanglement Polygon Inequalities for A Class of Mixed States
Xian Shi
The study on the entanglement polygon inequality of multipartite systems has attracted much attention. However, most of the results are on pure states. Here we consider the propert…
The entanglement criteria based on equiangular tight frames
Xian Shi
Finite tight frames play an important role in miscellaneous areas, including quantum information theory. Here we apply a class of tight frames, equiangular tight frames, to address…
A family of separability criteria and lower bounds of concurrence
Xian Shi, Yashuai Sun
The problem on detecting the entanglement of a bipartite state is significant in quantum information theory. In this article, we apply the Ky Fan norm to the revised realignment ma…
A Genuine Multipartite Entanglement Measure Generated by the Parametrized Entanglement Measure
Xian Shi
In this paper, we investigate a genuine multipartite entanglement measure based on the geometric method. This measure arrives at the maximal value for the absolutely maximally enta…
Entanglement polygon inequalities for pure states in qudit systems
Xian Shi
Entanglement is one of the important resources in quantum tasks. Recently, Yang [arXiv:2205.08801] proposed an entanglement polygon inequalities (EPI) in terms of some e…
Quantifying the entanglement of quantum states under the geometry method
Xian Shi, Lin Chen, Yixuan Liang
Quantifying entanglement is an important issue in quantum information theory. Here we consider the entanglement measures through the trace norm in terms of two methods, the modifie…
The entropy of quantum causal networks
Xian Shi, Lin Chen
Quantum networks play a key role in many scenarios of quantum information theory. Here we consider the quantum causal networks in the manner of entropy. First we present a revised…
An Extention of Entanglement Measures for Pure States
Xian Shi, Lin Chen
To quantify the entanglement is one of the most important topics in quantum entanglement theory. In [arXiv: 2006.12408], the authors proposed a method to build a measure from the o…
Multi-linear Monogamy Relations for Three Qubit States
Xian Shi, Lin Chen, Mengyao Hu
The monogamy of entanglement means that entanglement cannot be freely shared. In 2014, Oliveira et al. [ Oliveira et al., Phys. Rev. A. 89, 034303 (2014)] proposed a monogamy relat…
Monogamy relations for generalized W class states in terms of Tsallis entropy beyond qubits
Xian Shi
\indent In this article, we consider the monogamy relations for the generalized W class states. Here we first present an analytical formula on Tsallis- entanglement and Tsallis-…