Google is working on a quantum computer

Google, which together with NASA bought a quantum computer D-Wave last year, has just started working with scientists from many research centers to create its own machine of this type. The team is to operate under the common name of Quantum Artificial Intelligence and according to it, it has an overarching goal of creating quantum artificial intelligence.

Google is working on a quantum computer

Google, which together with NASA bought the D-Wave quantum computer last year, has just started collaborating with scientists from a number of research centers to create its own machine of this type. The team is to operate under the common name of Quantum Artificial Intelligence and according to it, it has an overarching goal of creating quantum artificial intelligence.

The Quantum Artificial Intelligence department will not have to start from scratch – it will absorb the laboratory dealing with this issue at the University of California, Santa Barbara. The lab recently created a network of five interconnected qubits (quantum bits), and the research on it has been very promising – it looks like it should be possible to increase its size and create a quantum processor that way.

The work that will be carried out in this lab will be quite different from what D-Wave offers, because this computer does not work like a classical quantum computer but uses so-called quantum annealing. Simulated annealing is based on a random search through a space of alternative solutions in order to choose the best one – which the scientists present using an analogy – it’s as if we were walking on some terrain – its mountains and valleys – in search of the lowest point. In quantum annealing, however, you don’t have to walk on the terrain, but you can, as it were, move “through” the terrain – which enables an effect called quantum tunneling (a particle can cross a potential barrier with a height greater than the energy of the particle), thanks to which individual qubits are connected to each other – as it were, they are aware of what processes are taking place in the others.

The operation of this computer has been , but even so, due to its nature, the potential applications are severely limited, and in some tasks it loses out to an ordinary PC. Therefore, you can fully understand Google’s decision to work on a “real” quantum computer – because here is to come a real revolution. The power of quantum computers is to grow exponentially, not logarithmically – so that 2 cubits allow you to carry out the work on four values (that is 0.0; 0.1; 1;1, 1.0), 3 – on 8, 4 on 16, and so on. This gives almost unlimited possibilities in solving very complex problems – a computer consisting of just 300 qubits would be able to store as many numbers as there are atoms in the entire universe.

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