Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

People say we're running out of energy. That's only true if we stick with these old 19th century technologies. We are awash in energy from sunlight.

 

Ray Kurzweil

 

Discovery could propel quantum computers to reality

RATE THIS! +2
Posted in Science on 7th Jul, 2012 05:41 PM by AlexMuller

It’s the holy grail of quantum computing: how to create the key building blocks known as quantum bits — qubits — that exist in a solid-state system at room temperature.

 

A group of Harvard scientists, led by Professor of Physics Mikhail Lukin and including graduate students Georg Kucsko and Peter Maurer and postdoctoral researcher Christian Latta, say they have cracked the code regarding the cooling of quantum computers.

 

And they did it by turning to one of the purest materials on Earth: diamonds.

 

Using a pair of impurities in ultra-pure, laboratory-grown diamonds, the researchers announced earlier this week that preliminary results reveal the ability to create quantum bits and store information in them for nearly two seconds — an increase of nearly six magnitudes, say the scientists. The work, described in the June 8 issue of Science, is a critical first step in the eventual construction of a functional quantum computer that could one day allow for advanced computations.

 

“What we’ve been able to achieve in terms of control is quite unprecedented,” Harvard Professor of Physics Mikhail Lukin said. “We have a qubit, at room temperature, that we can measure with very high efficiency and fidelity. We can encode data in it, and we can store it for a relatively long time. We believe this work is limited only by technical issues, so it looks feasible to increase the life span into the range of hours. At that point, a host of real-world applications become possible.”

 

The research is the latest step towards creating quantum computers. A  practical quantum computer with enough qubits available could complete in minutes calculations that would take ultrafast super-computers years, and your laptop perhaps millions of years to process. Such computers will harness the powers of atoms and sub-atomic particles (ions, photons, electrons) to perform memory and processing tasks, thanks to the strange sub-atomic properties of quantum mechanics, say scientists.

 

One challenge facing quantum computing is creating computers that can remain in a solid-state at room temperature.  Most systems rely on complex and expensive equipment designed to trap an atom or electron in a vacuum, and then cool the entire system to nearly absolute zero, or −459.67° Fahrenheit. Researchers say the experiment is an essential finding for the evolution of the quantum computer, saying it will likely serve as cornerstone for additional research in the coming years.

 

“This research is an important step forward in research toward one day building a practical quantum computer,” graduate student Georg Kucskoo, who works in Lukin’s lab and is one of two first authors of the paper, said. “For the first time, we have a system that has a reasonable timescale for memory and simplicity, so this is now something we can pursue.”

 

The most current computers are possibly able to understand is a bit. Much like a light that can be switched on or off, a bit can have only one of two values: “1″ or “0″. For qubits, they can hold a value of “1” or “0” as well as both values at the same time. Described as superposition, this is what allows quantum computers to perform millions of calculations at once.

 



Read original article » Back to category

Comments



 

Recent headlines

  • Posted in Medicine on 2017-09-24 12:24:41
    Effective help is available for migraine sufferers..read more
    Posted in Business on 2017-09-24 12:20:40
    AR startup Mira bags $1 million for Google Cardboard-like.....read more
    Posted in Medicine on 2017-09-24 12:14:44
    Alarm as 'super malaria' spreads in South East Asia..read more
    Posted in Science on 2017-09-23 08:31:24
    Fly me to the Moon: For some, lunar village takes shape..read more
    Posted in Software on 2017-09-23 08:22:48
    One year later, Microsoft AI and Research grows to 8k.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Scientists probe Neptune's depths to reveal secrets of icy.....read more
    Posted by AlexMuller
    New terahertz imaging approach could speed up skin cancer.....read more
    Posted by AlexMuller
    Rebutting the claim that antidepressants do not work..read more
    Posted by AlexMuller
    Artificial neural networks decode brain activity during.....read more
    Posted by AlexMuller
    Four Earth-sized planets detected orbiting the nearest.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me