Greater re­li­a­bil­ity

Build­ing of quan­tum com­mu­ni­ca­tion line be­tween Wuhan, He­fei to be­gin

China Daily (USA) - - FRONT PAGE - By ZHAO LEI in Wuhan zhaolei@chi­nadaily.com.cn

China is to start con­struc­tion on a quan­tum com­mu­ni­ca­tion line be­tween Wuhan, cap­i­tal of Hubei province, and He­fei, the An­hui provin­cial cap­i­tal, bringing the na­tion a step closer to hav­ing the world’s most se­cure com­mu­ni­ca­tion net­work.

The Wuhan-He­fei quan­tum com­mu­ni­ca­tion line will be put into oper­a­tion around the end of next year and will be con­nected with the 2,000kilo­me­ter Bei­jing-Shang­hai quan­tum com­mu­ni­ca­tion net­work that is ex­pected to be com­pleted at the end of this year, ac­cord­ing to a state­ment pub­lished by China Aero­space Sci­ence and In­dus­try Corp at a two-day laser tech­nol­ogy fo­rum that closed on Wed­nes­day in Wuhan.

A con­struc­tion agree­ment was signed at the fo­rum among sev­eral part­ners in­volved in the line, in­clud­ing China Aero­space Sci­ence and In­dus­try, Univer­sity of Sci­ence and Tech­nol­ogy of China and Wuhan city gov­ern­ment.

Upon its com­ple­tion, the Wuhan-He­fei line will stretch more than 300 km. It will ini­tially be used by gov­ern­ment bod­ies and fi­nan­cial in­sti­tu­tions in Wuhan be­fore be­ing opened to the busi­ness sec­tor and ex­tended to cities along the line, said Wu Xiaofeng, a se­nior man­ager at China Aero­space Sci­ence and In­dus­try who is over­see­ing the project.

Wu said the line in­volves an ini­tial in­vest­ment of about 200 mil­lion yuan ($29 mil­lion) an­dall of its tech­nolo­gies and equip­ment will be de­vel­oped by Chi­nese sci­en­tists.

China Aero­space Sci­ence and In­dus­try, a ma­jor de­fense con­trac­tor, de­vel­ops ad­vanced laser tech­nolo­gies and in­stru­ments, which are key com­po­nent sofa quan­tum com­mu­ni­ca­tion net­work.

Quan­tum com­mu­ni­ca­tion lines fea­ture ul­tra­high se­cu­rity. It is the­o­ret­i­cally im­pos­si­ble to wire­tap, in­ter­cept or crack the in­for­ma­tion trans­mit­ted through them, ac­cord­ing to re­search.

Af­ter three years of con­struc­tion, a 712-km quan­tum com­mu­ni­ca­tion line was re­cently put into oper­a­tion be­tween He­fei and Shang­hai, mak­ing it the world’s long­est quan­tum com­mu­ni­ca­tions net­work.

The He­fei-Shang­hai line is part of the Bei­jing-Shang­hai quan­tum com­mu­ni­ca­tion net­work. The net­work will mainly se­cure quan­tum en­cryp­tion com­mu­ni­ca­tion by gov­ern­ment and mil­i­tary au­thor­i­ties in Bei­jing and fi­nan­cial in­sti­tu­tions in Shang­hai, said Chen Yu’ao, chief de­signer of the net­work and a pro­fes­sor at Univer­sity of Sci­ence and Tech­nol­ogy of China in He­fei.

He added that the quan­tum en­cryp­tion tech­nol­ogy will be of great im­por­tance to the mil­i­tary.

In Au­gust, China launched the world’s first quan­tum ex­per­i­ment satellite to ver­ify quan­tum com­mu­ni­ca­tion the­o­ries.

In­ter­na­tion­ally, all ma­jor tech­nol­ogy pow­ers, in­clud­ing the United States, the Euro­pean Union and Ja­pan, are in­vest­ing heav­ily in the re­search of quan­tum en­cryp­tion tech­nolo­gies.

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