7
votes
1answer
175 views

Computability of physics

As far as I understand a Universal Quantum Simulator can simulate any quantum system and thus anything that exists in the universe. Also, a quantum computer can implement such a quantum simulator. ...
0
votes
0answers
142 views

Quantum Compting or DNA computing [closed]

My friend and me are working on DNA computing and on some improvements to it. Of course, we are working on computing aspects of this branch. So, we have insufficient knowledge about physics and ...
11
votes
1answer
826 views

How many qubits are needed for useful computation?

Seeing the news about 14 entangled states today @ Innsbruck: I haven't found a clear guide online to how many qubits we are aiming for a first practical quantum computer, e.g. Factorization, Search ...