当前位置: X-MOL 学术Nature › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
An atomic boson sampler
Nature ( IF 64.8 ) Pub Date : 2024-05-08 , DOI: 10.1038/s41586-024-07304-4
Aaron W. Young , Shawn Geller , William J. Eckner , Nathan Schine , Scott Glancy , Emanuel Knill , Adam M. Kaufman

A boson sampler implements a restricted model of quantum computing. It is defined by the ability to sample from the distribution resulting from the interference of identical bosons propagating according to programmable, non-interacting dynamics1. An efficient exact classical simulation of boson sampling is not believed to exist, which has motivated ground-breaking boson sampling experiments in photonics with increasingly many photons2,3,4,5,6,7,8,9,10,11,12. However, it is difficult to generate and reliably evolve specific numbers of photons with low loss, and thus probabilistic techniques for postselection7 or marked changes to standard boson sampling10,11,12 are generally used. Here, we address the above challenges by implementing boson sampling using ultracold atoms13,14 in a two-dimensional, tunnel-coupled optical lattice. This demonstration is enabled by a previously unrealized combination of tools involving high-fidelity optical cooling and imaging of atoms in a lattice, as well as programmable control of those atoms using optical tweezers. When extended to interacting systems, our work demonstrates the core abilities required to directly assemble ground and excited states in simulations of various Hubbard models15,16.



中文翻译:

原子玻色子采样器

玻色子采样器实现了量子计算的受限模型。它的定义是从根据可编程、非相互作用动力学传播的相同玻色子的干扰所产生的分布中进行采样的能力1。人们认为玻色子采样的高效精确经典模拟并不存在,这激发了光子学中突破性的玻色子采样实验,光子数量越来越多2,3,4,5,6,7,8,9,10,11,12。然而,以低损耗生成并可靠地演化特定数量的光子是困难的,因此通常使用后选择7的概率技术或对标准玻色子采样10、11、12的显着改变。在这里,我们通过在二维隧道耦合光学晶格中使用超冷原子13,14实施玻色子采样来解决上述挑战。该演示是通过以前未实现的工具组合实现的,其中包括高保真光学冷却和晶格中原子的成像,以及使用光镊对这些原子进行可编程控制。当扩展到交互系统时,我们的工作展示了在各种哈伯德模型的模拟中直接组装基态和激发态所需的核心能力15,16

更新日期:2024-05-09
down
wechat
bug