Topological order on the Bloch sphere

@article{Liss2018TopologicalOO,
  title={Topological order on the Bloch sphere},
  author={Rotem Liss and Tal Mor and Roman Orus},
  journal={arXiv: Quantum Physics},
  year={2018}
}
  • Rotem Liss, Tal Mor, Roman Orus
  • Published 2018
  • Physics, Mathematics
  • arXiv: Quantum Physics
  • A Bloch sphere is the geometrical representation of an arbitrary two-dimensional Hilbert space. Possible classes of entanglement and separability for the pure and mixed states on the Bloch sphere were suggested by [M. Boyer, R. Liss, T. Mor, PRA, 032308 (2017)]. Here we construct a Bloch sphere for the Hilbert space spanned by one of the ground states of Kitaev's toric code model and one of its closest product states. We prove that this sphere contains only one separable state, thus belonging… CONTINUE READING

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