论文标题
在近期量子计算机上的多路径隧道系统中模拟相干反向散射
Emulating coherent backscattering in multipath tunnel systems on a near-term Quantum computer
论文作者
论文摘要
超导量子箱已经表现出可能在模拟一致的背部散射或弱定位（WL）和隧道现象方面具有潜力，但是，在实际的多组系统中，它们尚未得到验证。在这里，我们展示了如何通过在封闭路径和大型返回式型号（tunne boxes）和大型电位（pr）构建多个散射中心的量子设备来模拟双路径系统。隧道屏障的这种布置结合可以增加一个额外的几何相，并在环和管中分别展示Aharonov-Bohm型振荡（PHI）0和（PHI/2）0。双路径电路中的间层隧穿和内部层隧穿的组合形成了相位逆转，随后且弱反定位效应（WAL）效应且相干时间很长。最后，PR的角度依赖性牢固地建立了两个路径电路的稳定性，这也与相位间的共振引起的相位逆转有关。
Superconducting qubits already demonstrated potential in emulating coherent back scattering or weak localization (WL) and tunnelling phenomena however, in a real multipath system they have not been verified yet.Here we show how a double-path system can be emulated by a quantum device through construction of multiple scattering centers in closed paths (detune boxes) and tunnel barriers with a large return probability (Pr) of electrons. Incorporation of such arrangements of tunnel barriers can add an extra geometric phase and demonstrate Aharonov-Bohm type oscillations (phi)0 and (phi/2)0 in a ring and a tube, respectively. A combination of inter and intra layer tunnelling in a double-path circuit creates a phase reversal and subsequently weak anti-localization (WAL) effect with a long coherence time. Finally, angle dependence of Pr firmly establishes stability of the two-path circuit which is also associated with a phase reversal due to the inter-path resonance.
