47 citations · 232 across the 24 of their papers we have counts for
24 papers
Proof of the Peres conjecture for contextuality
Zhen-Peng Xu, Jing-Ling Chen, Otfried Gühne
A central result in the foundations of quantum mechanics is the Kochen-Specker theorem. In short, it states that quantum mechanics cannot be reconciled with classical models that a…
General Hardy-Type Paradox Based on Bell inequality and its Experimental Test
Mu Yang, Hui-Xian Meng, Jie Zhou +7
Local realistic models cannot completely describe all predictions of quantum mechanics. This is known as Bell's theorem that can be revealed either by violations of Bell inequality…
Experimental Test of Generalized Hardy's Paradox
Yi-Han Luo, Hong-Yi Su, He-Liang Huang +7
Since the pillars of quantum theory were established, it was already noted that quantum physics may allow certain correlations defying any local realistic picture of nature, as fir…
Deriving Einstein-Podolsky-Rosen steering inequalities from the few-body Abner Shimony inequalities
Jie Zhou, Hui-Xian Meng, Shu-Han Jiang +4
For the Abner Shimony (AS) inequalities, the simplest unified forms of directions attaining the maximum quantum violation are investigated. Based on these directions, a family of E…
Chained Einstein-Podolsky-Rosen steering inequalities with improved visibility
Hui-Xian Meng, Jie Zhou, Changliang Ren +2
It is known that the linear n-setting steering inequalities introduced in Ref. [Nature Phys. 6, 845 (2010)] are very efficient inequalities in detecting steerability of the Werner…
Quantum backflow in solutions to the Dirac equation of the spin- free particle
Hong-Yi Su, Jing-Ling Chen
It was known that a free, nonrelativistic particle in a superposition of positive momenta can, in certain cases, bear a negative probability current --- hence termed quantum backfl…
Generalized Hardy's Paradox
Shu-Han Jiang, Zhen-Peng Xu, Hong-Yi Su +2
Here we present the most general framework for -particle Hardy's paradoxes, which include Hardy's original one and Cereceda's extension as special cases. Remarkably, for any $n\…
On realizing Lovász-optimum orthogonal representation in the real Hilbert space
Zhen-Peng Xu, Jing-Ling Chen
Quantum contextuality is usually revealed by the non-contextual inequality, which can always be associated with an exclusivity graph. The quantum upper bound of the inequality is n…
General tradeoff relations of quantum nonlocality in the Clauser-Horne-Shimony-Holt scenario
Hong-Yi Su, Jing-Ling Chen, Won-Young Hwang
General tradeoff relations present in nonlocal correlations of bipartite systems are studied, regardless of any specific quantum states and measuring directions. Extensions to mult…
Bipartite quantum coherence in noninertial frames
Xu Chen, Chunfeng Wu, Hong-Yi Su +2
Quantum coherence as the fundamental characteristic of quantum physics, provides the valuable resource for quantum computation in exceeding the power of classical algorithms. The e…
Connecting quantum contextuality and genuine multipartite nonlocality with the quantumness witness
Xu Chen, Hong-Yi Su, Jing-Ling Chen
The Clauser-Horne-Shimony-Holt-type noncontextuality inequality and the Svetlichny inequality are derived from the Alicki-Van Ryn quantumness witness. Thus a connection between qua…
Reformulating noncontextuality inequalities in an operational approach
Zhen-Peng Xu, Debashis Saha, Hong-Yi Su +2
A new theory-independent noncontextuality inequality is presented [Phys. Rev. Lett. 115, 110403 (2015)] based on Kochen-Specker (KS) set without imposing the assumption of determin…
Optimal GHZ Paradox for Three Qubits
Changliang Ren, Hong-Yi Su, Zhen-Peng Xu +2
Quatum nonlocality as a valuable resource is of vital importance in quantum information processing. The characterization of the resource has been extensively investigated mainly fo…
Sharp Contradiction for Local-Hidden-State Model in Quantum Steering
Jing-Ling Chen, Hong-Yi Su, Zhen-Peng Xu +1
In quantum theory, no-go theorems are important as they rule out the existence of a particular physical model under consideration. For instance, the Greenberger-Horne-Zeilinger (GH…
Quantum contextuality of a qutrit state
Zhen-Peng Xu, Hong-Yi Su, Jing-Ling Chen
We present a study of quantum contextuality of three-dimensional mixed states for the Klyachko-Can-Binicioğlu-Shumovsky (KCBS) and the Kurzyński-Kaszlikowski (KK) noncontextuality…
State-independent contextuality sets for a qutrit
Zhen-Peng Xu, Jing-Ling Chen, Hong-Yi Su
We present a generalized set of complex rays for a qutrit in terms of parameter , a -th root of unity. Remarkably, when , the set reduces to two well known s…
Demonstrating quantum contextuality of indistinguishable particles by a single family of noncontextuality inequalities
Hong-Yi Su, Jing-Ling Chen, Yeong-Cherng Liang
Quantum theory has the intriguing feature that is inconsistent with noncontextual hidden variable models, for which the outcome of a measurement does not depend on which other comp…
Dimension-Independent Bounds for Hardy's Experiment
Zhen-Peng Xu, Hong-Yi Su, Jing-Ling Chen
Hardy's paradox is of fundamental importance in quantum information theory. So far, there have been two types of its extensions into higher dimensions: in the first type the maximu…
Quantum Nonlocality Enhanced by Homogenization
Xu Chen, Hong-Yi Su, Zhen-Peng Xu +2
Homogenization proposed in [Y.-C Wu and M. Żukowski, Phys. Rev. A 85, 022119 (2012)] is a procedure to transform a tight Bell inequality with partial correlations into a full-corre…
Beating the Clauser-Horne-Shimony-Holt and the Svetlichny games with Optimal States
Hong-Yi Su, Changliang Ren, Jing-Ling Chen +6
We study the relation between the maximal violation of Svetlichny's inequality and the mixedness of quantum states and obtain the optimal state (i.e., maximally nonlocal mixed stat…
Beyond Gisin's Theorem and its Applications: Violation of Local Realism by Two-Party Einstein-Podolsky-Rosen Steering
Jing-Ling Chen, Hong-Yi Su, Zhen-Peng Xu +5
We demonstrate here that for a given mixed multi-qubit state if there are at least two observers for whom mutual Einstein-Podolsky-Rosen steering is possible, i.e. each observer is…
Hardy's Paradox for High-Dimensional Systems: Beyond Hardy's Limit
Jing-Ling Chen, Adan Cabello, Zhen-Peng Xu +3
Hardy's proof is considered the simplest proof of nonlocality. Here we introduce an equally simple proof that (i) has Hardy's as a particular case, (ii) shows that the probability…
Requirement of Dissonance in Assisted Optimal State Discrimination
Fu-Lin Zhang, Jing-Ling Chen, L. C. Kwek +1
A fundamental problem in quantum information is to explore what kind of quantum correlations is responsible for successful completion of a quantum information procedure. Here we st…
Quantum contextuality for a relativistic spin-1/2 particle
Jing-Ling Chen, Hong-Yi Su, Chunfeng Wu +4
The quantum predictions for a single nonrelativistic spin-1/2 particle can be reproduced by noncontextual hidden variables. Here we show that quantum contextuality for a relativist…