Einstein-Podolsky-Rosen steering criterion and monogamy relation via correlation matrices in tripartite systems

LJ Li, XG Fan, XK Song, L Ye, D Wang - Physical Review A, 2024 - APS
Quantum steering is considered one of the most well-known nonlocal phenomena in
quantum mechanics. Unlike entanglement and Bell nonlocality, the asymmetry of quantum …

Comparing metrics for mixed quantum states: Sjöqvist and Bures

PM Alsing, C Cafaro, O Luongo, C Lupo, S Mancini… - Physical Review A, 2023 - APS
It is known that there are infinitely many distinguishability metrics for mixed quantum states.
This freedom, in turn, leads to metric-dependent interpretations of physically meaningful …

Negativity vs. purity and entropy in witnessing entanglement

J Schneeloch, CC Tison, HS Jacinto, PM Alsing - Scientific Reports, 2023 - nature.com
In this paper, we explore the value of measures of mixedness in witnessing entanglement.
While all measures of mixedness may be used to witness entanglement, we show that all …

EPR Steering Criterion and Monogamy Relation via Correlation Matrices in Tripartite Systems

LJ Li, XG Fan, XK Song, L Ye, D Wang - arXiv preprint arXiv:2406.13290, 2024 - arxiv.org
Quantum steering is considered as one of the most well-known nonlocal phenomena in
quantum mechanics. Unlike entanglement and Bell non-locality, the asymmetry of quantum …

Numerical evidence for a bipartite pure state entanglement witness from approximate analytical diagonalization

PM Alsing, RJ Birrittella - arXiv preprint arXiv:2404.13725, 2024 - arxiv.org
We show numerical evidence for a bipartite $ d\times d $ pure state entanglement witness
that is readily calculated from the wavefunction coefficients directly, without the need for the …