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Nonreciprocal genuine steering of three macroscopic samples in a spinning microwave magnonical system

Wenxue Zhong, Qianjun Zheng, Guangling Cheng +1 more

Here, we propose to generate the nonreciprocal macroscopic entanglement and steering of magnon modes from three yttrium iron garnet spheres, which are placed in a spinning microwave resonator damped by a squeezed reservoir. Strikingly, the genuine entanglement and steering among three magnons can be achieved due to the correlation transfer from squeezed microwave to three magnons and the steady-state entanglement and steering show strong robustness against temperature. Furthermore, the nonreciprocal tripartite entanglement and steering are simultaneously existent based on Fizeau light-dragging effect by spinning the resonator at the steady state, which provides an alternative way to manipulate nonreciprocal effects in a cavity magnonical system and may have potential applications in manipulating the macroscopic quantum states of the multipartite system.Here, we propose to generate the nonreciprocal macroscopic entanglement and steering of magnon modes from three yttrium iron garnet spheres, which are placed in a spinning microwave resonator damped by a squeezed reservoir. Strikingly, the genuine entanglement and steering among three magnons can be achieved due to the correlation transfer from squeezed microwave to three magnons and the steady-state entanglement and steering show strong robustness against temperature. Furthermore, the nonreciprocal tripartite entanglement and steering are simultaneously existent based on Fizeau light-dragging effect by spinning the resonator at the steady state, which provides an alternative way to manipulate nonreciprocal effects in a cavity magnonical system and may have potential applications in manipulating the macroscopic quantum states of the multipartite system.

Applied Physics LettersSep 25, 202315 citations

Entanglement Dynamics in a Model Tripartite Quantum System

Pradip Laha, B. Sudarsan, S. Lakshmibala +1 more

arXiv:1509.06952International Journal of Theoretical PhysicsMay 16, 201611 citations

Genuine tripartite entanglement and quantum phase transition

Yu, Chang-Shui, Song +3 more

中国物理B：英文版Jan 1, 20080 citations

Detecting multipartite entanglement via complete orthogonal basis

Hui Zhao, Jia Hao, Jing Li +3 more

We study genuine tripartite entanglement and multipartite entanglement in arbitrary n-partite quantum systems based on complete orthogonal basis (COB). While the usual Bloch representation of a density matrix uses three types of generators, the density matrix with COB operators has one uniformed type of generators which may simplify related computations. We take the advantage of this simplicity to derive useful and operational criteria to detect genuine tripartite entanglement and multipartite entanglement. We first convert the general states to simpler forms by using the relationship between general symmetric informationally complete measurements and COB. Then we derive an operational criteria to detect genuine tripartite entanglement. We study multipartite entanglement in arbitrary dimensional multipartite systems. By providing detailed examples, we demonstrate that our criteria can detect more genuine entangled and multipartite entangled states than the previously existing criteria.We study genuine tripartite entanglement and multipartite entanglement in arbitrary n-partite quantum systems based on complete orthogonal basis (COB). While the usual Bloch representation of a density matrix uses three types of generators, the density matrix with COB operators has one uniformed type of generators which may simplify related computations. We take the advantage of this simplicity to derive useful and operational criteria to detect genuine tripartite entanglement and multipartite entanglement. We first convert the general states to simpler forms by using the relationship between general symmetric informationally complete measurements and COB. Then we derive an operational criteria to detect genuine tripartite entanglement. We study multipartite entanglement in arbitrary dimensional multipartite systems. By providing detailed examples, we demonstrate that our criteria can detect more genuine entangled and multipartite entangled states than the previously existing criteria.

arXiv:2310.06431Results in PhysicsOct 6, 20234 citations

Study of entanglement for tripartite symmetrical states

Ruben Quesada

Aug 27, 20120 citations

Hierarchy of tripartite entanglement detection in a cavity magnomechanical system

Wei Niu, Jiong Cheng, Wen-Zhao Zhang +1 more

Abstract We propose a criterion for detecting quantum states containing non-zero entanglement with respect to all possible bipartitions of a tripartite system. Our criterion, together with two other criteria, forms a hierarchy of tripartite entanglement detection, revealing three distinct types: genuine tripartite entanglement, entanglement with respect to all bipartitions, and standard tripartite entanglement. Furthermore, we present a feasible scheme for generating and detecting this hierarchy of tripartite entanglement within a cavity magnomechanical system. Our research paves the way for generating and detecting tripartite entanglement hierarchies in continuous variable systems.Abstract We propose a criterion for detecting quantum states containing non-zero entanglement with respect to all possible bipartitions of a tripartite system. Our criterion, together with two other criteria, forms a hierarchy of tripartite entanglement detection, revealing three distinct types: genuine tripartite entanglement, entanglement with respect to all bipartitions, and standard tripartite entanglement. Furthermore, we present a feasible scheme for generating and detecting this hierarchy of tripartite entanglement within a cavity magnomechanical system. Our research paves the way for generating and detecting tripartite entanglement hierarchies in continuous variable systems.

Journal of Physics B Atomic Molecular and Optical PhysicsJun 14, 20240 citations

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