Robust and Reliable Transfer of a Quantum State Through a Spin Chain
arXiv:0812.4578 · doi:10.1103/PhysRevA.80.022330
Abstract
We present several protocols for reliable quantum state transfer through a spin chain. We use a simple two-spin encoding to achieve a remarkably high fidelity transfer for an arbitrary quantum state. The fidelity of the transfer also decreases very slowly with increasing chain length. We find that we can also increase the reliability by taking advantage of a local memory and/or confirm transfer using a second spin-chain.
5 pages, 4 figures
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Cited by in corpus (10)
- Universal Existence of Exact Quantum State Transmissions in Interacting Media
- Quantum-state transfer in spin chains via isolated resonance of terminal spins
- Quantum state transmission in a cavity array via two-photon exchange
- Almost exact state transfer in a spin chain via pulse control
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- Quantum correlations in a cluster spin model with three-spin interactions