国产热热热精品,亚洲视频久久】日韩,三级婷婷在线久久,99人妻精品视频,精品九热人人肉肉在线,AV东京热一区二区,91po在线视频观看,久久激情宗合,青青草黄色手机视频

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
三都| 景德镇市| 彭阳县| 葫芦岛市| 肇州县| 晋州市| 任丘市| 临夏市| 曲水县| 茂名市| 泰宁县| 承德县| 炉霍县| 繁昌县| 互助| 彩票| 腾冲县| 安丘市| 盘锦市| 迭部县| 濮阳市| 高清| 深圳市| 乌审旗| 昂仁县| 石城县| 宽甸| 新乡县| 志丹县| 七台河市| 德阳市| 右玉县| 上饶市| 合阳县| 拜泉县| 蓝山县| 澄城县| 永清县| 泰宁县| 石首市| 开江县|