Latest News:  


China makes breakthrough on quantum computer

(People's Daily Online)

16:45, February 07, 2013

The solid-state quantum research crew from the University of Science and Technology of China succeeded in performing the quantum logic gate operation on one single electron at 10 picoseconds, renewing the previous world records by nearly 100 times, making a big step toward the semiconductor-based “quantum computer”.

It is inferable from the Moore's Law that around 2020, each transistor might be as small as an electron, also known as single-electron transistor. According to Guo Guoping, director of the research project, the information representation with “0” and “1” in the computer information processing is achieved by switch closure. Once the tunneling occurs as the transistor becomes increasingly smaller, the electron will go directly through the transistor and be uncontrollable by the switch closure.

The world’s major computer chip manufacturers are still trying to avoid tunneling. But in the opinion of Guo, it is wiser to utilize than avoid in the long term, advancing the use of “quantum computing” to represent the information “0” and “1” with the horizontal and vertical properties of one single electron.

“Any complicated computer operation is achieved by arithmetic operations of single and two bits, just like the building of houses in round and square bricks.

“The research achievement is a breakthrough in the single-bit operational speed, representing the elements of ‘0’ and ‘1’ with one single electron at 10 picoseconds,” said Guo.

Previously, the U.S. and Japanese research institutes achieved the electrically controlled semiconductor logic gate at 1,000 picoseconds. The achievement by Guo and his colleagues increases the operational speed by almost 100 times to 10 picoseconds, making a significant step in promoting the quantum computing from laboratory demonstration to practical use. The Nature Communications, a branch of the academic journal Nature, has published the achievement in its entirety recently.

Guo said that China has launched the solid-state quantum chip project in efforts to gain a foothold in the global competition in the next-generation computer chips. Once the quantum chip is introduced to the computer, it will make the quantum computer characterized by exponentially increased operational speed and greatly improved data processing capabilities.

Read the Chinese version: 固态量子芯片研究我国刷新世界纪录; Source: People's Daily

We Recommend:

'Wedding' for two old men in Beijing

$16,000 splash to be washed emperor-style

So sleepy on way home in Spring Festival travel rush

Sweetest moment of 'mother-to-be'

Parents keep son alive with DIY ventilator

China's weekly story (2013.01.27-01.31)

Chinese New Year in country fair

A Taiwan student’s adventure in Beijing

Wedding planner: dealing with 'happiness' and 'love'

Email|Print|Comments(Editor:ChenLidan、Ye Xin)

Leave your comment0 comments

  1. Name


Selections for you

  1. Chinese navy conducts landing training

  2. Winter training on snow-capped mountains

  3. Imitation of Russian Empress' crown unveiled

  4. 12 killed in SW China road accident

  5. Moments that melt your heart

  6. China's transport sees travel rush

  7. Wu Mochou: Maverick musician

  8. 'Little Psy' wants to be more famous

  9. Robot pavilion opens to public at Taipei

  10. China's income distribution reform

Most Popular


  1. Is the wolf really gone?
  2. K-pop on Spring Festival gala stirs controversy
  3. Some media don't get the message: no bootlicking
  4. US playing strategic arms game
  5. Aiming at fairer realty market
  6. Dark business environment breeds dark deeds
  7. Israel-Palestine peace talks dominate Obama's visit
  8. Cowardly officials behind thuggish pawns
  9. Free-pass policy faces New Year migration test
  10. Safety on the roads

What’s happening in China

Moments that melt your heart during the Spring Festival travel rush

  1. Chinese spend big for Valentine's Day
  2. China ends free postgrad tuition
  3. Media told to drop ads for gifts
  4. China to develop sustainable marine fishery
  5. Free-pass policy faces New Year migration test