Linked by Hadrien Grasland on Sun 23rd Jan 2011 17:30 UTC, submitted by fran

"Scientists from Oxford University have made a significant step towards an ultrafast quantum computer by successfully generating 10 billion bits of quantum entanglement in silicon for the first time -- entanglement is the key ingredient that promises to make quantum computers far more powerful than conventional computing devices."

Permalink for comment 459473

To read all comments associated with this story, please click here.

To read all comments associated with this story, please click here.

Member since:

2005-07-07

Quantum computer may help make part of an NP computation deterministic, but that does not mean that NP problems become deterministic in the least.

P time is not the same as the class

P.P time means solvable in polynomial time.

The class

Pis the set of problems solvable in polynomial time on a deterministic machine. The classNPis the set of problems solvable in polynomial time on a non-deterministic machine.NPproblems are often O(N!) or O(N^N) or worse on deterministic machines. However, they most likely are solvable in P time on quantum computing machines.This does NOT mean that P=NP because quantum computing machines are NOT deterministic.