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Quantum Simulation
Entanglement of quantum spin systems: a valence-bond approach
arXiv
Authors: S. Capponi, F. Alet, M. Mambrini
Year
2010
Paper ID
28780
Status
Preprint
Abstract Read
~2 min
Abstract Words
89
Citations
N/A
Abstract
In order to quantify entanglement between two parts of a quantum system, one of the most used estimator is the Von Neumann entropy. Unfortunately, computing this quantity for large interacting quantum spin systems remains an open issue. Faced with this difficulty, other estimators have been proposed to measure entanglement efficiently, mostly by using simulations in the valence-bond basis. We review the different proposals and try to clarify the connections between their geometric definitions and proper observables. We illustrate this analysis with new results of entanglement properties of spin 1 chains.
Why This Paper Matters
- This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
- It adds a 2010 reference point for readers tracking recent quantum research.
- In order to quantify entanglement between two parts of a quantum system, one of the most used estimator is the Von Neumann entropy.
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