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Trapped Ion Quantum Computing

Finite-size scaling of coherence and steered coherence in the Lipkin-Meshkov-Glick model

arXiv
Authors: Ming-Liang Hu, Fan Fang, Heng Fan

Year

2021

Paper ID

62803

Status

Preprint

Abstract Read

~2 min

Abstract Words

97

Citations

N/A

Abstract

Quantum coherence reflects the origin of quantumness and might be capable of extracting the subtle nature of a system. We investigate the ground-state coherence and steered coherence in the Lipkin-Meshkov-Glick model and show that they detect faithfully the quantum phase transitions of this model. Moreover, we carry out scaling analysis on the coherence and steered coherence by means of the continuous unitary transformation method and it is found that the scaling exponents are uniquely determined by the phase region of this model. These results may provide useful insights into the mechanism underlying quantum criticality in many-body systems.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2021 reference point for readers tracking recent quantum research.
  • Quantum coherence reflects the origin of quantumness and might be capable of extracting the subtle nature of a system.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2107.13916 [2] arXiv https://arxiv.org/abs/2107.13916 [3] Publisher https://arxiv.org/abs/2107.13916

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