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Danish researchers developed nanochips with which “quantum superiority” may very well be achieved.

Specialists from the University of Copenhagen have developed a chip that can be used to build a future quantum simulator.

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December
12, 2020

3 min read

This article has been translated from our Spanish edition using AI technologies. Errors can occur due to this process.

Researchers at the University of Copenhagen have developed a chip that can achieve "quantum superiority," that is, a processor that can perform tasks that are almost impossible for a classic computer.

This work was published on Wednesday by Science Advances, in which it is stated: "Photonic qubits are important requirements for the processing of quantum information that can be implemented using a distributed quantum network."

According to the team at the University of Copenhagen, the nanochip can generate hundreds of photons (light particles) that are used to store large amounts of data in the form of quantum information and use them as hardware in the quantum computers of the future.

The team will initially use its photon sources to develop new advanced quantum simulators that can solve complicated biochemical problems that could even be used to develop new drugs.

Google is an initiator in the quantum advantage

The technology company is a pioneer in ensuring quantum supremacy. Next, scientists from the Niels Bohr Institute at the University of Copenhagen worked with Google in collaboration with the University of Bochum to build the world's first quantum computer.

The difference between a traditional computer and quantum bits is the use of a system of quantum bits (qubits) that store information in two digits of the binary code 1 and 0. Classic computers use bits and only have to select the data memory in one of the two figures.

However, a Google computer of this class did a task in 200 seconds that the fastest supercomputer in the world would do in about 10,000 years. However, the IBM company questioned the impact.

One of the authors of the research, Professor Peter Lodahl, points to "a great advance and the first step towards an unexplored area in the world of quantum physics" because the team guarantees that it "has the tool to make one possible Quantum simulator that can surpass a classic computer ”.

Although the specialists have not yet carried out a real quantum advantage experiment, the test article shows that the nanochip "generates a quantum mechanical resource with which a proven technology can be achieved".

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