AI路径之让拓扑相变存储数据
The following article is from 量子材料QuantumMaterials Author 樊贞
海归学者发起的公益学术平台
分享信息,整合资源
交流学术,偶尔风月
人工基元
引子
自从在地球上称王称霸之后,人类一向将自己定义为有思想的高等动物,无有他类,以显示高高在上、区别于一般动物种群。从古到今,这一定义从未受到严峻挑战。也因此,人类在大致理解了人的大脑到底如何实现思维和思想之后,并没有花费很大力气去学习和制造大脑。当然这种理解、这种制造的确也极为困难,非三纲五常所能成事。这种高高在上的状态,最后反而因为人类自身活动的异化而出现失稳。最著名的事例即超级计算机在与象棋、围棋大师的快棋决战中屡屡胜出,极大地打击了人类那种高高在上、自以为是的气焰和认知。
人工突触与 RRAM
经过很多年大浪淘沙,目前看来,类似于其它新型存储如铁电存储 (FRAM)、磁存储 (MMRAM) 和相变存储 (PCRAM),阻变存储 (RRAM) 也适合于构建人工突触和神经网络。罗列一下 RRAM 的特点:能耗低、速度快,可实现多态存储 (对应多个突触权重值);结构简单,可直接构建 crossbar 形成神经网络。
拓扑相变
拓扑之下焉有金丝
电场读写机制
后话
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备注:
(1) 笔者简介:樊贞,供职于华南师范大学先进材料研究所,从事新型信息存储材料 (如铁电、阻变材料)及其物理机制的研究。2016 年加盟华师后,以第一/ 通讯作者身份发表诸多文章,包括 Adv. Mater.、Phys. Rev. Appl.、NPG Asia Mater.、J. Mater. Chem. C、Appl. Phys. Lett. 等刊物论文;曾主持国家自然科学基金 2 项,2018 年入选广东省青年珠江学者。
(2) 题头小诗乃编者所加,乃感叹人类繁衍也就数万年,就梦想着开始制作人脑了。
(3)封面图片展示人工突触神经的信息交互,来自
https://news.engin.umich.edu/2018/12/new-memristor-better-mimics-synapses/。
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