论文标题
声子介导的非平衡相关性和遥远半导体之间的纠缠
Phonon mediated non-equilibrium correlations and entanglement between distant semiconducting qubits
论文作者
论文摘要
我们从理论上研究了一维耦合机械谐振链中遥远的半导体矩形之间的非平衡相关性和纠缠。每个量子位均由双量子点（DQD）定义，并嵌入机械谐振器中。可以通过沿谐振链的声子传输耦合，相关并纠缠两个量子位。我们以不同的声子耦合率计算非平衡相关性和稳态纠缠率，并找到由种群反演引起的最大稳定纠缠。结果表明，高度可调节的相关性和纠缠可以通过Quint-Qubit混合系统产生，这将有助于介质物理学和固态量子计算的发展。
We theoretically study the non-equilibrium correlations and entanglement between distant semiconductor qubits in a one-dimensional coupled-mechanical-resonator chain. Each qubit is defined by a double quantum dot (DQD) and embedded in a mechanical resonator. The two qubits can be coupled, correlated and entangled through phonon transfer along the resonator chain. We calculate the non-equilibrium correlations and steady-state entanglement at different phonon-phonon coupling rates, and find a maximal steady entanglement induced by a population inversion. The results suggest that highly tunable correlations and entanglement can be generated by phonon-qubit hybrid system, which will contribute to the development of mesoscopic physics and solid-state quantum computation.
