综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

USEUROPEAFRICAASIA 中文雙語Fran?ais
World
Home / World / Asia-Pacific

Australia to develop world's fastest computer

Xinhua | Updated: 2013-06-21 15:14

SYDNEY - Australian researchers have taken the next step in an incremental journey to developing the first large-scale quantum computer.

The world's potentially fastest computer system will be made up of tricky little building blocks called quantum bits, or qubits -- consisting of a single electron bound to a phosphorus atom.

Information is stored in the spin of each qubit electron, which can be moving in two directions at once. The qubits need to be placed with atomic precision, only a few nanometres apart, for the system to work.

Scientists have previously encountered difficulties in making qubits, placing them so close together, distinguishing individual qubits from their neighbours, and controlling their spin independently.

University of New South Wales (UNSW) researchers, who prefer to work with qubits in a silicon chip, have proposed a solution to each of these challenges, working with Sandia National Laboratories in New Mexico.

"It is a daunting challenge to rotate the spin of each qubit individually," said Holger Bch, lead author of the new study.

"But if each electron is hosted by a different number of phosphorus atoms, then the qubits will respond to different electromagnetic fields -- and each qubit can be distinguished from the others around it," he said.

The researchers say they are now one step closer to realising a practical, large-scale quantum computer -- the supercomputer of the future.

"This first demonstration that we can maintain long spin lifetimes of electrons on multi-donor systems is very powerful. It offers a new method for addressing individual qubits," said Michelle Simmons, UNSW Australian Centre of Excellence for Quantum Computation and Communication Technology director.

"This is an elegant and satisfying piece of work," she said.

Most Viewed in 24 Hours
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
临高县| 望江县| 苗栗市| 白朗县| 福鼎市| 彭州市| 定日县| 阳新县| 苍溪县| 东乌珠穆沁旗| 阳曲县| 绥江县| 镇平县| 尼木县| 建平县| 定远县| 泸水县| 清水县| 永清县| 安新县| 依兰县| 紫金县| 从化市| 太和县| 青浦区| 峨山| 台东市| 湘潭市| 西盟| 郴州市| 克什克腾旗| 双牌县| 沙田区| 迁西县| 南涧| 密云县| 肥西县| 永善县| 台东县| 普定县| 上思县|