论文标题

用于快速光学地址和控制大型量子阵列的多尺度架构

Multi-scale architecture for fast optical addressing and control of large scale qubit arrays

论文作者

Graham, T. M., Oh, E., Saffman, M.

论文摘要

我们提出了一种使用快速偏转器(例如声音偏转器)和相对较慢的空间光调制器的组合,以对大阵列中粒子的量子状态进行快速选择性控制。由于过渡时间缓慢阻止快速,连续的量子门,因此使用空间光调节器对位点选择性量子状态操作受到限制。通过将空间照明调制器分配到多个段中,并使用快速偏转器之间的过渡,可以通过增加可以为单个空间光调制器完整帧设置的单个空间照明调制器执行的门数,从而实质上减少扫描仪过渡之间的平均时间增加。我们以两种不同的配置分析了该设备的性能:在配置1中,空间灯调制器的每个段都解决了完整的量子数组;在配置2中,空间灯调制器的每个段都解决了一个子阵列和附加的快速转移器位置,该位置相对于完整的量子数阵列。使用这些混合动力扫描仪,我们计算出比单独使用SLM快数十至数百倍的速度。

We present a technique for rapid site-selective control of the quantum state of particles in a large array using a combination of a fast deflector (e.g. an acousto-optic deflector) and a relatively slow spatial light modulator. The use of spatial light modulators for site-selective quantum state manipulation has been limited due to slow transition times preventing rapid, consecutive quantum gates. By partitioning the spatial light modulator into multiple segments, and using a fast deflector to transition between them, it is possible to substantially reduce the average time increment between scanner transitions by increasing the number of gates that can be performed for a single spatial light modulator full frame setting. We analyze the performance of this device in two different configurations: in configuration 1, each segment of the spatial light modulator addresses the full qubit array; in configuration 2, each segment of the spatial light modulator addresses a sub-array and an additional fast deflector positions that sub-array with respect to the full qubit array. With these hybrid scanners we calculate qubit addressing rates that are tens to hundreds of times faster than using an SLM alone.

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