# Qubits in quantum computing [closed]

In my picture of the quantum computers, the memory would deal with matter in superposition. The matters actual state is said be precisely unknown and you cannot cleary say it is in this state or another, but only to a degree this or to a degree not this. In conventional computers, the memory addresses are either in one of two states this or not this.

My question is this then a quantum computer must have memory states of just fuzzy. This could be described as (1 and 0) if the quantum computers memory is said to be a state of uncertainty all the memory qubits would all be in the same state of fuzziness. How could you then differentiate between the state of each qubit and use this to represent a variety of information? Is it therefore that each qubit's state would have to be in a different degree of uncertainty to another? And with this, would it mean that you could differenciate between qubit's, and use this to represent a variety of information?

Finally then a quantum computer with a finite number of qubit's must have a memory which has an infinite amount of possible states because of the limitless degrees of uncertainty a qubit can be in?

## closed as unclear what you're asking by peterh, Jon Custer, Yashas, John Rennie, VoidJun 16 '17 at 8:53

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

• I am not clear about what you are asking. Please make it clear – Lê Dũng Jun 15 '17 at 21:25
• That in order to determine what something is it has to obsevered to be this or that (to be or not to be) surely something that is not clearly defined and in two states at the same time the things description can only be described as fuzzy and vague. – 8Mad0Manc8 Jun 15 '17 at 21:31
• I suggest to break up your text into smaller sentences. I wished to fix it, but honestly I simply can't decode where ends a statement and where the next begins. It is like your text had been generated by a spam engine. – peterh Jun 15 '17 at 22:39
• @peterh the grammar in my comment or in the question or both. Sorry I find it difficult composing something while using a mobile phone. – 8Mad0Manc8 Jun 15 '17 at 22:48
• If you want your question to be taken seriously given the comments above you'll have to do find a proper keyboard to make appropriate edits. @peterh is absolutely spot on: in its current form near impossible to read. – ZeroTheHero Jun 15 '17 at 23:37

To compute something ,we don't have to apply a gate(like not gate for a bit flip) to each and every bit like in conventional computer but we can just create a superposition of everything we want and then apply the gate once.The nature will take care of the rest.This result in exponential increase in computation.For n bits, the computation power is equivalent to $2^n$ classical bits. Actually, if you have 200 qubit computer, then you have more computational power than whole of the world combined.But making algorithms for quantum computers is different and more difficult.To learn more,you can check our grover's search algorithm and shor's algorithm for prime number factorization.Because the final result correctness is probabilistic,you always have to take care of the errors that will be present.