# IBM says it's reached milestone in quantum computing

IBM has announced a milestone in its race against Google and other big tech firms to build a powerful quantum computer.

Dario Gil, who leads IBM's quantum computing and artificial intelligence research division, said Friday that the company's scientists have successfully built and measured a processor prototype with 50 quantum bits, known as qubits.

Gil says it's the first time any company has built a quantum computer at this scale.

Quantum computing, a technology that's still in its early phases, uses the quirks of quantum physics to perform calculations at far higher speeds than current computers.

Seth Lloyd, an MIT mechanical engineering professor not involved in IBM's research, says it's likely that IBM still has glitches to work out but the 50-qubit announcement is a sign of significant progress.

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**More information:**IBM press release: www-03.ibm.com/press/us/en/pressrelease/53374.wss

IBM Q: www.research.ibm.com/ibm-q/

© 2017 The Associated Press. All rights reserved.

**Citation**: IBM says it's reached milestone in quantum computing (2017, November 10) retrieved 25 May 2019 from https://phys.org/news/2017-11-ibm-milestone-quantum.html

## User comments

flashgordonParsecCubicAdjunct747It only has 90 microseconds of stable "up time" so not very big at this time.

javjavIn a quantum computer prime numbers are obtained by sampling (measuring) the output. Stability time is not a big issue because you only need to run the algorithm one time, from that point then every time you measure the output you will get a prime number (a random one, with as many bits as dedicated for data ). Unfortunately 50 bits is not enough to get unknown primes. But it can be invaluable as a proof of concept

Da Schneib@javjav, that's about correct. However DWAVE has demonstrated a 2048 bit quantum annealer so it's years not decades away.

Da Schneibluke_w_bradleyDa Schneibhowhot3Da Schneib50 qubits is 50 quantum values.

Whydening GyreWhich we won't know until we look at them...:-)

Spooky computing at a distance...

Da SchneibFound something interesting, a categorical listing of the currently known quantum algorithms: http://math.nist....tum/zoo/

rrranderDa SchneibderphysThe microscopic quantum complexity is dramatically more than the classical complexity.of the macroscopic world.

Quantum computers are necessary to simulate and understand our real microscopic quantum world, like complex superconductors, superfluids, magnetism, quarks.

As explained by Deutsch, any useful quantum computer calculating on many parallel micro-worlds ( 10¨512 with 512 qubits ) will prove the existence of parallel universes to our universe

derphyserror read 2¨512 with 512 qubits, 2 not 10 or 10¨51 rouhgly !!!!

With 10 times qubits than this IBM quantum computer, it calculates as over 2 power 512 parallel classical computers to give at random one of the ending statistical possibilities.

"That's more calculations than there are atoms in the universe, by many orders of magnitude. "

https://www.flick...9089904/

Whydening GyreThat WAS interesting.

And since I had no clue as to what I was reading. it became even SPOOKIER from a distance...:-)

But - I didn't know that until I looked at it...:-)

Funny how it all comes around full circle...

ab6pnNeutronicallyRepulsiveParsecWhat you say is beside the point. The only relevant point is that no matter what it is, any competent CS knows how to find the information necessary to get educated on anything.

Da SchneibThis don't work like that.

Whydening GyreLooks like a windchime I make....

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