3 ms·

so whats stopping them from running these chips side by side to add more qubits?

• jojobas 2y ago
  The qubits must have a shared state. I don't think you can entangle separate machines.
• GuB-42 2y ago
  You could add "marketing qubits". But it won't work for what a large number of qubits are useful for. The point of having quantum computer is that qubits can be in a superposition, be both 0 and 1 at the same time. The consequence is that for some algorithms, the computing speed scales exponentially to the number of qubits, while it scales linearly to the number of classical bits. But in order to get that exponential speedup, the qubits have to stay coherent, which mean you have to combine them to execute the operation, but with zero disturbance from anywhere else. It is really hard to achieve, a single stray photon could completely destroy your calculation. And the more qubits, the harder it is. If you don't care about coherence, your qubits become no better than classical bits and having a quantum computer become useless. A way to think of it is that a 30 qubit chip is a million times better than a 10 qubit chip, but three 10 qubit chips is just 3 times better than a single 10 qubit chip.
  • akomtu 2y ago
    Or a single stray neutrino? It seems these quantum computers can be used as very sensitive antennas.
• lmm 2y ago
  A qbit is only a qbit if it's entangled with other qbits. You have to keep the whole state in superposition.