English

Entanglement and Berry Phase in a $9\times 9$ Yang-Baxter system

Quantum Physics 2010-01-27 v2

Abstract

A M-matrix which satisfies the Hecke algebraic relations is presented. Via the Yang-Baxterization approach, we obtain a unitary solution R˘(θ,φ1,φ2)\breve{R}(\theta,\varphi_{1},\varphi_{2}) of Yang-Baxter Equation. It is shown that any pure two-qutrit entangled states can be generated via the universal R˘\breve{R}-matrix assisted by local unitary transformations. A Hamiltonian is constructed from the R˘\breve{R}-matrix, and Berry phase of the Yang-Baxter system is investigated. Specifically, for φ1=φ2 \varphi_{1}=\varphi_{2}, the Hamiltonian can be represented based on three sets of SU(2) operators, and three oscillator Hamiltonians can be obtained. Under this framework, the Berry phase can be interpreted.

Keywords

Cite

@article{arxiv.0904.0092,
  title  = {Entanglement and Berry Phase in a $9\times 9$ Yang-Baxter system},
  author = {Chunfang Sun and Gangcheng Wang and Kang Xue},
  journal= {arXiv preprint arXiv:0904.0092},
  year   = {2010}
}

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10 pages