电脑知识
performclick
2023-04-15 00:35

#中国量子计算原型机九章问世# 祝贺潘建伟团队!

嫦娥五号已经在回来的路上,可控核聚变也取得重要进展,一天之内三个惊喜,正所谓:厚积薄发。

墨子卫星、多光子纠缠、量子计算机,留学归来的潘建伟院士团队,一路走来遇到过不少挑战与质疑,但不为所动,终于研制出中国的第一台量子原型计算机,其性能远超其它国家的原型机。

十二月份,我们还在等另一个消息:华为手机HMS系统的发布。

以下是潘建伟团队发布在2020.12.03的SCIENCE杂志的摘要(原文附后)。

量子计算机有望执行某些被认为是经典计算机难以处理的任务。玻色子采样就是这样一个任务,被认为是证明量子计算优势的有力候选者。我们通过发送50个无法区分的单模压缩态到一个100模的超低损耗干涉仪中进行高斯玻色子采样,该干涉仪具有全连通性和随机矩阵,整个光学装置是锁相的,并使用100个高效单光子探测器对输出进行采样。所得到的样品进行验证,对合理的假设利用热状态,可区分的光子,和均匀分布。光子量子计算机产生高达76输出光子点击(clicks),从而产生的输出状态空间维度为10^30,和采样速率比目前使用最先进仿真策略和超级计算机还要快10^14倍。

Quantum computers promises to perform certain tasks that are believed to be intractable to classical computers. Boson sampling is such a task and is considered as a strong candidate to demonstrate the quantum computational advantage. We perform Gaussian boson sampling by sending 50 indistinguishable single-mode squeezed states into a 100-mode ultralow-loss interferometer with full connectivity and random matrix—the whole optical setup is phase-locked—and sampling the output using 100 high- efficiency single-photon detectors. The obtained samples are validated against plausible hypotheses exploiting thermal states, distinguishable photons, and uniform distribution. The photonic quantum computer generates up to 76 output photon clicks, which yields an output state-space dimension of 1030 and a sampling rate that is ~1014 faster than using the state-of-the-art simulation strategy and supercomputers.

#嫦娥五号上升器点火起飞# #中国核聚变发展取得重大突破#

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