Entanglement evolution of three-qubit states in a quantum-critical environment

XS Ma, AM Wang, Y Cao - Physical Review B—Condensed Matter and …, 2007 - APS
We investigate the entanglement dynamics of three-qubit states in a quantum-critical
environment, which is an Ising model in a transverse field. By using negativity as …

Divergence of the entanglement range in low-dimensional quantum systems

L Amico, F Baroni, A Fubini, D Patane, V Tognetti… - Physical Review A …, 2006 - APS
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 …

Measuring entanglement entropy of a generic many-body system with a quantum switch

DA Abanin, E Demler - Physical review letters, 2012 - APS
Entanglement entropy has become an important theoretical concept in condensed matter
physics because it provides a unique tool for characterizing quantum mechanical many …

Single-copy entanglement in critical quantum spin chains

J Eisert, M Cramer - Physical Review A—Atomic, Molecular, and Optical …, 2005 - APS
We consider the single-copy entanglement as a quantity to assess quantum correlations in
the ground state in quantum many-body systems. We show for a large class of models that …

Measuring entanglement using quantum quenches

J Cardy - Physical review letters, 2011 - APS
Measuring Entanglement Using Quantum Quenches Page 1 Measuring Entanglement Using
Quantum Quenches John Cardy Rudolf Peierls Centre for Theoretical Physics, Oxford …

Geometric mean of bipartite concurrences as a genuine multipartite entanglement measure

Y Li, J Shang - Physical Review Research, 2022 - APS
In this paper, we propose the geometric mean of bipartite concurrences as a genuine
multipartite entanglement measure. This measure achieves the maximum value for …

Characterizing entanglement by momentum jump in the frustrated Heisenberg ring at a quantum phase transition

XF Qian, T Shi, Y Li, Z Song, CP Sun - Physical Review A—Atomic, Molecular …, 2005 - APS
We study the pairwise concurrences, a measure of entanglement, of the ground states for
the frustrated Heisenberg ring to explore the relation between entanglement and quantum …

Exact and asymptotic measures of multipartite pure-state entanglement

CH Bennett, S Popescu, D Rohrlich, JA Smolin… - Physical Review A, 2000 - APS
Hoping to simplify the classification of pure entangled states of multi (m)− partite quantum
systems, we study exactly and asymptotically (in n) reversible transformations among n th …

Induced entanglement enhanced by quantum criticality

Q Ai, T Shi, G Long, CP Sun - Physical Review A—Atomic, Molecular, and …, 2008 - APS
Two-qubit entanglement can be induced by a quantum data bus interacting with them. In this
paper, with the quantum spin chain in the transverse field as an illustration of the quantum …

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 …