Predicting a topological quantum phase transition from dynamics via multisite entanglement

LGC Lakkaraju, SK Haldar, A Sen - Physical Review A, 2024 - APS
An exactly solvable Kitaev model in a two-dimensional square lattice exhibits a topological
quantum phase transition which is different from the symmetry-breaking transition at zero …

Elliptical high-order harmonic generation from driven by orthogonally polarized two-color laser fields

XX Huo, YH **ng, T Qi, Y Sun, B Li, J Zhang, XS Liu - Physical Review A, 2021 - APS
We theoretically investigate the elliptical high-order harmonic generation from the H 2+
molecule driven by the orthogonally polarized two-color laser field by numerically solving …

Unification of coherence and quantum correlations in tripartite systems

DD Dong, GB Wei, XK Song, D Wang, L Ye - Physical Review A, 2022 - APS
In quantum resource theories (QRTs), evidence of intrinsic connections between coherence
and quantum correlations, including Bell nonlocality, entanglement, quantum steering, and …

Circulating genuine multiparty entanglement in a quantum network

P Halder, R Banerjee, S Ghosh, AK Pal, A Sen - Physical Review A, 2022 - APS
We propose a deterministic scheme of generating genuine multiparty entangled states in
quantum networks of arbitrary size having various geometric structures—we refer to it as …

Testing multipartite productness is easier than testing bipartite productness

BDM Jones, A Montanaro - arxiv preprint arxiv:2406.16827, 2024 - arxiv.org
We prove a lower bound on the number of copies needed to test the property of a
multipartite quantum state being product across some bipartition (ie not genuinely …

Restoring metrological quantum advantage of measurement precision in a noisy scenario

A Bhattacharyya, A Ghoshal, U Sen - Physical Review A, 2024 - APS
We show that in presence of a local and uncorrelated dephasing noise, quantum advantage
can be obtained in the Fisher information-based lower bound of the minimum uncertainty in …

The separability versus entanglement problem

S Das, T Chanda, M Lewenstein… - … From Foundations to …, 2016 - Wiley Online Library
This chapter defines formally what entangled states are, presents some important criteria to
discriminate entangled states from separable ones, and shows their classification according …

Complementary relation between tripartite entanglement and the maximum steering inequality violation

TZ Dai, Y Fan, L Qiu - Physical Review A, 2022 - APS
We investigate the relation between tripartite entanglement of the three-qubit system and the
maximum steering inequality violation of the reduced two-qubit states. Firstly, it is found that …

Nonlocality of mixtures of the ground and first excited states within Heisenberg model

J Bao, L Shen, H Liu, B Guo, Z Sun - Journal of Physics …, 2024 - iopscience.iop.org
We investigate both bipartite and multipartite nonlocality in the J1− J2 Heisenberg model.
Bipartite nonlocality is measured by the CHSH inequality, while multipartite nonlocality is …

Entanglement of genuinely entangled subspaces and states: Exact, approximate, and numerical results

M Demianowicz, R Augusiak - Physical Review A, 2019 - APS
Genuinely entangled subspaces (GESs) are those subspaces of multipartite Hilbert spaces
that consist only of genuinely multiparty entangled pure states. They are natural …