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Topological Quantum Computing

Quench dynamics of topological quantum phase transition in Wen-plaquette model

arXiv
Authors: Long Zhang, Su-Peng Kou, Youjin Deng

Year

2010

Paper ID

28912

Status

Preprint

Abstract Read

~2 min

Abstract Words

95

Citations

N/A

Abstract

We study the quench dynamics of the topological quantum phase transition in the two-dimensional transverse Wen-plaquette model, which has a phase transition from a Z2 topologically ordered to a spin-polarized state. By mapping the Wen-plaquette model onto a one-dimensional quantum Ising model, we calculate the expectation value of the plaquette operator Fi during a slowly quenching process from a topologically ordered state. A logarithmic scaling law of quench dynamics near the quantum phase transition is found, which is analogous to the well-known static critical behavior of the specific heat in the one-dimensional quantum Ising model.

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  • We study the quench dynamics of the topological quantum phase transition in the two-dimensional transverse Wen-plaquette model, which has a phase transition from a Z2...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1011.4667 [2] arXiv https://arxiv.org/abs/1011.4667 [3] Publisher https://arxiv.org/abs/1011.4667

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