Die zukünftige Sprache der Quantenprogrammierung?
What is meant by quantum simulation?
Quantum simulators are devices that actively use quantum effects to answer questions about model systems and, through them, real systems. Here we expand on this definition by answering several fundamental questions about the nature and use of quantum simulators.
Can you simulate qubits?
You can actually simulate a bit more qubits if you use only 1 and 2 qubit gates to decompose your big unitary, and act on a pure state. With 8GB of RAM you can easily do 25 qubits in double precision.
Can you simulate a quantum computer?
Yes, a classical computer can simulate a quantum computer in terms of computational efficiency but it would be limited up to 23 qubits till 2005-2006 using IBM Bluegene supercomputer cluster at Forschungszentrum Juelich in Germany.