There is no doubt that quantum computing is one of the future potentials of computing, but for it to be a commercially viable reality, various obstacles must be overcome. Well, one of them known as Full Spin Qubit has finally been overcome, so little by little this new way of understanding computing is taking shape to reach the PC in the future.
The current calculation is made up of logic gates in which each bit can be in two different positions which we represent as 0 or 1 because it is a binary system. Qubits go beyond this paradigm and promise to change the foundations of computing through concepts from a discipline of science: quantum physics.
Spin Qubit advances quantum computing
There are two challenges in scaling quantum processors, the first is the number of qubits they can work with, while the second relates to the consistency between them which is essential to achieve the greatest. number of simultaneous operations at the same time.
Well, a giant leap has been taken in solving the second problem, as a team from the University of Copenhagen has designed a quantum computing system that allows all qubits to perform operations at the same time without the quantum coherence between them is affected. For this, they have designed a new type: Spin Qubit.
In the words of Anasua Chatterjee, one of the leaders of the research team:
Now that we have a few good qubits, we need to connect them into circuits that allow us to work with a large number of them at the same time, when they are complex enough to correct quantum errors in the computation. So far, qubit research has reached the point where we have circuits with 2 × 2 or 3 × 3 qubit arrays. The problem is, they could only work with one qubit at a time.
The prototype chip they built to demonstrate their advances is not made of silicon, but of another semiconductor material called Gallium Arsenic. The configuration of the chip is as follows: in the middle of the four qubits is a quantum interconnect which makes each qubit communicate with the others and which makes it possible to vary the state of each of them.
A technology very focused on the future
Unfortunately, there is no lime without sand, and in quantum computing we continue without a breakthrough that allows us to go beyond the equivalent of quantum logic gates, since it is necessary for more complex structures to build the equivalents of basic combinatorial and sequential circuits.
This is not why we should underestimate the progress that has been made, and it is because the Spin Qubits solved a problem that has been a nightmare for researchers not for years, but for decades and it was something that had to be resolved before going to much more complex structures.
So we are facing a giant leap forward, hopefully the day will come when we will see the first full processor built using quantum computing.
