# Multipartite entanglement in spin chains

@article{Guehne2005MultipartiteEI, title={Multipartite entanglement in spin chains}, author={Otfried Guehne and G{\'e}za T{\'o}th and Hans J. Briegel}, journal={New Journal of Physics}, year={2005}, volume={7}, pages={229 - 229} }

We investigate the presence of multipartite entanglement in macroscopic spin chains. We discuss the Heisenberg and the XY model and derive bounds on the internal energy for systems without multipartite entanglement. Based on this we show that in thermal equilibrium the above-mentioned spin systems contain genuine multipartite entanglement, even at finite modest temperatures.

## 128 Citations

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- 2007

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We propose a method for generation of genuine multipartite entangled states in a short-range Ising spin chain with periodic global pulses of magnetic field. We consider an integrable and a…

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### Multipartite Entanglement at Finite Temperature

- PhysicsScientific Reports
- 2018

The analysis of paradigmatic spin systems showing symmetry-breaking quantum phase transitions and free-fermion models characterized by topological phases shows that topological systems are characterized by the survival of large multipartite entanglement, reaching the Heisenberg limit at finite temperature.

### Dynamics of the entanglement spectrum in spin chains

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- 2013

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We study the multipartite entanglement of a quantum many-body system undergoing a quantum quench. We quantify the multipartite entanglement through the quantum Fisher information (QFI) density, and…

### Multipartite non-locality and entanglement signatures of a field-induced quantum phase transition

- Physics
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Abstract
Quantum correlation measures are limited in practice to a few number of parties, since no general theory is still capable of reaching the thermodynamic limit. In the present work we study…

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