Enhancement of Pairwise Entanglement via Symmetry Breaking
We study the effect of symmetry breaking in a quantum phase transition on pairwise
entanglement in spin-1/2 models. We give a set of conditions on correlation functions a …
entanglement in spin-1/2 models. We give a set of conditions on correlation functions a …
Bound entanglement in the XY model
We study the multi-spin entanglement for the 1D anisotropic XY model concentrating on the
simplest case of three-spin entanglement. As compared to the pairwise entanglement, three …
simplest case of three-spin entanglement. As compared to the pairwise entanglement, three …
Pairwise entanglement and quantum phase transitions in spin systems
G Shi-Jian, T Guang-Shan, L Hai-Qing - Chinese Physics Letters, 2007 - iopscience.iop.org
Pairwise Entanglement and Quantum Phase Transitions in Spin Systems Page 1 Chinese
Physics Letters Pairwise Entanglement and Quantum Phase Transitions in Spin Systems To cite …
Physics Letters Pairwise Entanglement and Quantum Phase Transitions in Spin Systems To cite …
Divergence of the entanglement range in low-dimensional quantum systems
We study the pairwise entanglement close to separable ground states of a class of one-
dimensional quantum spin models. At T= 0 we find that such ground states separate regions …
dimensional quantum spin models. At T= 0 we find that such ground states separate regions …
Symmetry-breaking effects upon bipartite and multipartite entanglement in the model
We analyze the bipartite and multipartite entanglement for the ground state of the one-
dimensional XY model in a transverse magnetic field in the thermodynamical limit. We …
dimensional XY model in a transverse magnetic field in the thermodynamical limit. We …
Scaling of genuine multiparticle entanglement close to a quantum phase transition
M Hofmann, A Osterloh, O Gühne - Physical Review B, 2014 - APS
We investigate the scaling and spatial distribution of genuine multiparticle entanglement in
three-and four-spin reduced states of the one-dimensional XY model at the quantum phase …
three-and four-spin reduced states of the one-dimensional XY model at the quantum phase …
Dynamics of entanglement in one-dimensional spin systems
We study the dynamics of quantum correlations in a class of exactly solvable Ising-type
models. We analyze in particular the time evolution of initial Bell states created in a fully …
models. We analyze in particular the time evolution of initial Bell states created in a fully …
Genuine multipartite entanglement in the model
SM Giampaolo, BC Hiesmayr - Physical Review A—Atomic, Molecular, and …, 2013 - APS
We analyze the XY model characterized by an anisotropy γ in an external magnetic field, h,
with respect to its genuine multipartite entanglement content (in the thermodynamic and …
with respect to its genuine multipartite entanglement content (in the thermodynamic and …
Long-range multipartite entanglement close to a first-order quantum phase transition
We provide insight into the quantum correlations structure present in strongly correlated
systems beyond the standard framework of bipartite entanglement. To this aim we first …
systems beyond the standard framework of bipartite entanglement. To this aim we first …
QUANTUM PHASE TRANSITIONS AND ENTANGLEMENT IN J1–J2 MODEL
We study ground state pairwise entanglement within one-dimensional spin-1/2
antiferromagnetic J1–J2 model with competing interactions. Contrary to some claims we …
antiferromagnetic J1–J2 model with competing interactions. Contrary to some claims we …