K‐Nonseparable Entanglement Measures Based on the Complete Information of Reduced States
Sign Up to like & getrecommendations! Published in 2025 at "Annalen der Physik"
DOI: 10.1002/andp.202500263
Abstract: In this work, the framework of k$k$ ‐nonseparability is utilized to investigate parameterized multipartite entanglement measures. A k$k$ ‐nonseparable revised informationally complete entanglement measure( k$k$ ‐RICEM) is proposed for n$n$ ‐partite quantum systems( 2≤k≤n$2\le k\le… read more here.
Keywords: measures based; nonseparable entanglement; entanglement; entanglement measures ... See more keywords
Entanglement of purification for multipartite states and its holographic dual
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2018)152
Abstract: A bstractWe introduce a new information-theoretic measure of multipartite correlations ΔP, by generalizing the entanglement of purification to multipartite states. We provide proofs of its various properties, focusing on several entropic inequalities, in generic quantum… read more here.
Keywords: multipartite states; entanglement purification; multipartite entanglement; purification ... See more keywords
Matched witness for multipartite entanglement
Sign Up to like & getrecommendations! Published in 2017 at "Quantum Information Processing"
DOI: 10.1007/s11128-017-1529-7
Abstract: Entanglement criteria for multipartite entangled states are obtained by matching witnesses to multipartite entangled states. The necessary and sufficient criterion of separability for three qubit X states is given as an example to illustrate the… read more here.
Keywords: matched witness; entanglement; multipartite entanglement; separability ... See more keywords
A note on the lower bounds of genuine multipartite entanglement concurrence
Sign Up to like & getrecommendations! Published in 2024 at "Quantum Information Processing"
DOI: 10.1007/s11128-024-04607-3
Abstract: Quantum entanglement plays a pivotal role in quantum information processing. Quantifying quantum entanglement is a challenging and essential research area within the field. This manuscript explores the relationships between bipartite entanglement concurrence, multipartite entanglement concurrence,… read more here.
Keywords: lower bounds; entanglement concurrence; multipartite entanglement; genuine multipartite ... See more keywords
Unconditional robustness of multipartite entanglement of superposition
Sign Up to like & getrecommendations! Published in 2025 at "Quantum Information Processing"
DOI: 10.1007/s11128-025-04720-x
Abstract: We study the robustness of genuine multipartite entanglement and inseparability of multipartite pure states under superposition with product pure states. We introduce the concept of the maximal and the minimal Schmidt ranks for multipartite states.… read more here.
Keywords: robustness; robustness multipartite; pure states; multipartite entanglement ... See more keywords
Continuous-variable multipartite entanglement in an integrated microcomb
Sign Up to like & getrecommendations! Published in 2025 at "Nature"
DOI: 10.1038/s41586-025-08602-1
Abstract: The generation of large-scale entangled states is crucial for quantum technologies, such as quantum computation1, communication2 and metrology3. Integrated quantum photonics that enables on-chip encoding, processing and detection of quantum light states offers a promising… read more here.
Keywords: continuous variable; entanglement; generation; entanglement integrated ... See more keywords
Multipartite entanglement in the diagonal symmetric subspace
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Mathematical Physics"
DOI: 10.1063/5.0240964
Abstract: We investigate the entanglement properties in the symmetric subspace of N-partite d-dimensional systems (qudits). As it happens already for bipartite diagonal symmetric states, also in the multipartite case the local dimension d plays a crucial… read more here.
Keywords: entanglement diagonal; symmetric subspace; diagonal symmetric; bound entanglement ... See more keywords
Genuine multipartite entanglement measure
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/ac5649
Abstract: Quantifying genuine entanglement is a crucial task in quantum information theory. In this work, we give an approach of constituting genuine m-partite entanglement measures from any bipartite entanglement and any k-partite entanglement measure, 3 ⩽… read more here.
Keywords: system; entanglement measure; measure; multipartite entanglement ... See more keywords
Characterizing the Multipartite Entanglement Structure of Non-Gaussian Continuous-Variable States with a Single Evolution Operator.
Sign Up to like & getrecommendations! Published in 2024 at "Physical review letters"
DOI: 10.1103/21t1-dqn6
Abstract: Multipartite entanglement is an essential resource for quantum information tasks, but characterizing entanglement structures in continuous-variable systems remains challenging, especially in multimode non-Gaussian scenarios. In this Letter, we introduce an efficient method for detecting multipartite… read more here.
Keywords: operator; continuous variable; multipartite entanglement; variable states ... See more keywords
Relating spin squeezing to multipartite entanglement criteria for particles and modes
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.102.012412
Abstract: Entanglement witnesses based on first and second moments exist in the form of spin-squeezing criteria for the detection of particle entanglement from collective measurements, and in form of modified uncertainty relations for the detection of… read more here.
Keywords: spin squeezing; relating spin; spin; squeezing multipartite ... See more keywords
Device-independent certification of multipartite entanglement using measurements performed in randomly chosen triads
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.102.022419
Abstract: We consider the problem of demonstrating non-Bell-local correlations by performing local measurements in randomly chosen triads, i.e., three mutually unbiased bases, on a multipartite Greenberger-Horne-Zeilinger state. Our main interest lies on investigating the feasibility of… read more here.
Keywords: randomly chosen; chosen triads; independent certification; device independent ... See more keywords