. . COMPUTER: I.B.M. Researchers Inch Toward Quantum Computer . . I.B.M. Researchers Inch Toward Quantum Computer By KENNETH CHANG Published: February 28, 2012 New York Times Business Day Technologyhttp://www.nytimes.com/2012/02/28/technology/ ibm-inch-closer-on-quantum-computer.html
. A shorter URL for the above link: . http://tinyurl.com/6u3e9dn . .I.B.M. is jumping into an area of computing that has, until now, been primarily the province of academia: the quest to build a quantum computer.
.A computer that took advantage of the oddities of quantum physics could solve in seconds certain problems that would occupy present-day computers for billions of years. But for now, it is impossible to build such a computer because the bits of information it would need for the calculations fall apart before a calculation can be completed. The problem is, in essence, like trying to knit a sweater with yarn that unravels before the first purl.
.On Tuesday, I.B.M. researchers will present experimental results that they say put them close to solving this problem, both by lengthening the lifetime of the quantum bits of information and by quickening the pace of computation. The presentation will take place at a meeting of the American Physical Society in Boston.
.In the past, people have said, maybe its 50 years away, its a dream, maybe itll happen sometime, said Mark B. Ketchen, manager of the physics of information group at I.B.M.s Thomas J. Watson Research Center in Yorktown Heights, N.Y. I used to think it was 50. Now Im thinking like its 15 or a little more. Its within reach. Its within our lifetime. Its going to happen.
.Many university researchers have done good work solving the basic science problems, Dr. Ketchen said, but its going take an I.B.M. in the end to put it together.
.Its still too early for I.B.M. to have a commercial product in mind, but computer scientists are encouraged that the company is paying attention.
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