Quantum state transfer through an antiferromagnetic spin chain

Details Quantum state transfer through an antiferromagnetic spin chain Quantum state transfer through an antiferromagnetic spin chain

2012-01-17

arxiv.org/abs/1201.3576v2

Physics

Quantum Physics

6 pages, 6 figures

Scientific paper

We investigate the quality of quantum state transfer through a uniformly coupled antiferromagnetic spin chain. The fidelity of state transfer using antiferromagnetic channels is found to compare well with communication protocols based on ferromagnetic mediums. Our numerical results support the conjecture that the fidelity of state transfer through antiferromagnetic channels described by single-term states only depends on the number of initial excitations present in the chain and is independent of the excitation ordering.

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