论文标题
费米 - 克鲁德模型中的长距离纠缠和高维量子传送
Long Distance Entanglement and High-Dimensional Quantum Teleportation in The Fermi-Hubbard Model
论文作者
论文摘要
研究了有限尺寸的长距离纠缠开放式费米 - 哈伯德链，以及端到端量子传送。我们展示了费米 - 哈伯德模型的基态的特殊性，以支持最大的长距离纠缠，这使其可以作为高保真性长距离量子传送的量子资源运行。我们确定产生可扩展的长距离纠缠的物理特性和条件，并在库仑相互作用和跳跃幅度的效果下分析其稳定性。此外，我们表明，协议中的测量基础的选择可以极大地影响量子传送的忠诚度，我们认为可以通过选择适当的基础来反映量子通道的显着特性，即Hubbard Projective Leasurements。
The long distance entanglement in finite size open Fermi-Hubbard chains, together with the end-to-end quantum teleportation are investigated. We show the peculiarity of the ground state of the Fermi-Hubbard model to support maximum long distance entanglement, which allows it to operate as a quantum resource for high fidelity long distance quantum teleportation. We determine the physical properties and conditions for creating scalable long distance entanglement and analyze its stability under the effect of the Coulomb interaction and the hopping amplitude. Furthermore, we show that the choice of the measurement basis in the protocol can drastically affect the fidelity of quantum teleportation and we argue that perfect information transfer can be attained by choosing an adequate basis reflecting the salient properties of the quantum channel, i.e. Hubbard projective measurements.
