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Entanglement entropy in quasi-symmetric multi-qubit states
arXiv
Authors: Zhi-Hua Li, An-Min Wang
Year
2013
Paper ID
32290
Status
Preprint
Abstract Read
~2 min
Abstract Words
79
Citations
N/A
Abstract
We generalize the symmetric multi-qubit states to their q-analogs, whose basis vectors are identified with the q-Dicke states. We study the entanglement entropy in these states and find that entanglement is extruded towards certain regions of the system due to the inhomogeneity aroused by q-deformation. We also calculate entanglement entropy in ground states of a related q-deformed Lipkin-Meshkov-Glick model and show that the singularities of entanglement can correctly signify the quantum phase transition points for different strengths of q-deformation.
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- This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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- We generalize the symmetric multi-qubit states to their q-analogs, whose basis vectors are identified with the q-Dicke states.
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