论文标题
用完全未稳定的架构提高量子设备的可重复性
Improving reproducibility of quantum devices with completely undoped architectures
论文作者
论文摘要
量子电子设备的可再现操作是对将来的量子信息处理和SpinTronics应用程序的关键要求。传统上，量子设备是通过调制掺杂的异质结构制造的，由于离子化供体的随机潜力，由于固有的缺乏可重现性。在这里，我们表明，通过使用完全不稳定的体系结构，在限制电位上具有出色的均匀性以及电子和孔设备的更一致的工作电压，我们可以大大提高调制掺杂设备的可重复性。我们的结果表明，未依存的异质结构比调制掺杂量具有明显的优势，用于可再现的量子设备制造。
The reproducible operation of quantum electronic devices is a key requirement for future quantum information processing and spintronics applications. Traditionally quantum devices have been fabricated from modulation doped heterostructures, where there is an intrinsic lack of reproducibility due to the random potential from ionized donors. Here we show that we can greatly improve reproducibility over modulation doped devices by using a completely undoped architecture, with superior uniformity in the confinement potential and more consistent operating voltages for both electron and hole devices. Our results demonstrate that undoped heterostructures have significant advantages over modulation doping for reproducible manufacturing of quantum devices.
