Forwarded from Solidot
科学家创造至今最重的“薛定谔的猫”
2023-04-24 11:10:00 by 图书馆员与遗失的神灯
科学家已设法让原子或分子同时身处两个位置——所谓“叠加”态，实现了“薛定谔的猫”效应。在一项最新研究中，瑞士苏黎世联邦理工学院（ETH）科学家让一个 16 微克的微小晶体处于两个振荡状态的叠加态，创建了迄今最重“薛定谔的猫”。研究发表在《科学》杂志上，有望催生更大更稳健的量子比特，并用于探测引力波或暗物质等。研究人员此次成功地使用振荡晶体创造出了一种所谓的“薛定谔的猫”，其中振荡晶体代表猫，一个超导电路代表量子比特。量子比特和“猫”之间的联系不是计数器和毒药，而是一层压电材料，晶体在振荡时会改变形状，产生电场。该电场可与量子比特的电场耦合，量子比特的叠加态可转移给晶体，晶体也因此可同时向上及向下振荡，这个重达 16 微克处于叠加态的晶体，也因此成为迄今最重“薛定谔的猫”。
https://news.sciencenet.cn/htmlnews/2023/4/499193.shtm
#科学
2023-04-24 11:10:00 by 图书馆员与遗失的神灯
科学家已设法让原子或分子同时身处两个位置——所谓“叠加”态，实现了“薛定谔的猫”效应。在一项最新研究中，瑞士苏黎世联邦理工学院（ETH）科学家让一个 16 微克的微小晶体处于两个振荡状态的叠加态，创建了迄今最重“薛定谔的猫”。研究发表在《科学》杂志上，有望催生更大更稳健的量子比特，并用于探测引力波或暗物质等。研究人员此次成功地使用振荡晶体创造出了一种所谓的“薛定谔的猫”，其中振荡晶体代表猫，一个超导电路代表量子比特。量子比特和“猫”之间的联系不是计数器和毒药，而是一层压电材料，晶体在振荡时会改变形状，产生电场。该电场可与量子比特的电场耦合，量子比特的叠加态可转移给晶体，晶体也因此可同时向上及向下振荡，这个重达 16 微克处于叠加态的晶体，也因此成为迄今最重“薛定谔的猫”。
https://news.sciencenet.cn/htmlnews/2023/4/499193.shtm
#科学
&'a ::rynco::UntitledChannel
https://elk.zone/types.pl/@trebor/109801509982219794
完蛋，现在复习一下这个，发现我已经完全 chaotic 起来了
Forwarded from Lobste.rs
The shrinking role of semaphores [LWN.net]
Article also covers history of semaphores in linux kernel, which I found interesting :)Comments
via vi_mi@users.lobste.rs (vi_mi)
Article also covers history of semaphores in linux kernel, which I found interesting :)Comments
via vi_mi@users.lobste.rs (vi_mi)
Forwarded from Lobste.rs
Intel Submits Long-Awaited Shadow Stack Support For Linux 6.4
Comments
via vi_mi@users.lobste.rs (vi_mi)
Comments
via vi_mi@users.lobste.rs (vi_mi)
Phoronix
Intel Submits Long-Awaited Shadow Stack Support For Linux 6.4
While Intel Shadow Stack support has been around since Tiger Lake CPUs as part of Intel's Control-flow Enforcement Technology (CET), finally for the Linux 6.4 kernel is this security feature being enabled with the mainline Linux kernel.
Forwarded from Hacker News (yahnc_bot)
IKEA Redesigns Its Bestsellers https://www.wsj.com/articles/ikea-furniture-inflation-billy-c2f835bc
The Wall Street Journal
IKEA Redesigns Its Bestsellers, Starting With the Billy Bookcase
With inflation squeezing customers and material and shipping prices up, the company took products back to the drawing board to cut costs.
Forwarded from Hacker News (yahnc_bot)
LTESniffer: An open-source LTE downlink/uplink eavesdropper [pdf] https://syssec.kaist.ac.kr/pub/2023/wisec2023_tuan.pdf
Forwarded from Hacker News (yahnc_bot)
Transistor Made of Wood https://www.pnas.org/doi/10.1073/pnas.2218380120
PNAS
Electrical current modulation in wood electrochemical transistor | PNAS
The nature of mass transport in plants has recently inspired the development of low-cost
and sustainable wood-based electronics. Herein, we report ...
and sustainable wood-based electronics. Herein, we report ...
