Comment This is bull! (Score 2) 161
Ok so the first thing every one is talking about is this "Complete Reverseable" computation. Well thats wrong and taken out of context (trust me Im very adept at this theory and work with it on a daily basis) The nature of quantum gates, which comprise a quantum computer, are not reversable! though there are a few quantum alg that can be reversed it doesent me all can.
Secound - while a quantum computer may be able to do a ton of caculations at the same time we will never know the answers with the current theory of QM and here is why. Think of a Quantum Bit, a QuBit (and we are not building Ark's here), as a unit vector in 3d space. ITs possible for this vector to point in any direction orginating at the orgin, thus creating a "ball" in space. Now when 2 Qubits are put into the system (a Q-gate) u get 2 out puts (one from the first out put = the first imput un-altered, the secound output an altered form of the secound input). So how do we know what we did, well you observe the system, take a measuremnt. To take a measurement in QM you can only measure orthogional states, ie two possible out comes in a QuBit system, by doing so you force the "ball" (which is all possible outcomes) into one of two vectors thus reducing your infinte caculation. And after you take that measurement it doesent mean that the QuBit u measured will give you the same answer if you measure it again!
well I think thats enough for your to think on.
Secound - while a quantum computer may be able to do a ton of caculations at the same time we will never know the answers with the current theory of QM and here is why. Think of a Quantum Bit, a QuBit (and we are not building Ark's here), as a unit vector in 3d space. ITs possible for this vector to point in any direction orginating at the orgin, thus creating a "ball" in space. Now when 2 Qubits are put into the system (a Q-gate) u get 2 out puts (one from the first out put = the first imput un-altered, the secound output an altered form of the secound input). So how do we know what we did, well you observe the system, take a measuremnt. To take a measurement in QM you can only measure orthogional states, ie two possible out comes in a QuBit system, by doing so you force the "ball" (which is all possible outcomes) into one of two vectors thus reducing your infinte caculation. And after you take that measurement it doesent mean that the QuBit u measured will give you the same answer if you measure it again!
well I think thats enough for your to think on.
