Quantum FM Radio Is Now Possible?


To realize quantum computing, a new culture must be created that is different from the previous information processing environment.

Delicate and sensitive equipment, the materials that can be manufactured, the techniques that can handle fine information, and the pleasant quantum state unlike conventional computers are required.

Among them, the most worrisome thing scientists have been concerned with is the quantum state. In order to realize the dream computer, the quantum computer, and to apply it to various electronic products, stabilization of the quantum state is essential.

The research team at the University of Chicago in the US has succeeded in developing a stable device that can process quantum information based on silicon carbide, and the application of quantum computing such as ‘quantum FM radio’ will accelerate the practical use of electronic products. Ⓒibm.com

According to Science Alert on the 13th, a research team at the University of Chicago, USA, has succeeded in developing a stable device that can process quantum information from silicon carbide.

David Awschalom, a molecular engineer at the University of Chicago, who participated in the study, said, “The devices made of silicon carbide showed amazingly excellent information processing capabilities.”

Prof. said, “The stabilization of quantum status has made it possible to commercialize related electronic products that we have been worried about, and we can prepare an opportunity to further upgrade quantum computing performance.”

The paper was recently published in two papers, Science and Science Advanced.

In the journal Science, it was published titled Electric and optical control of single spins integrated in scalable semiconductor devices, and in Science Advanced, titled Electrically driven optical interferometry with spins in silicon carbide.

No one will deny that quantum computers will change the future of information processing.

Many people agree that the use of qubits instead of bits in traditional computers can improve performance to near infinity. However, in practical use, there has been no widespread consensus.

Because of the serious lack of technology regarding materials, parts and construction methods. In order for a quantum computer to work, a technology that can stabilize the quantum device is required, and the device to handle it remains in an incomplete state, which has disturbed the researchers.

The solution proposed in this situation is silicon carbide, a special material.

Called silicon carbide, it was discovered in 1890 by American chemist Edward Acheson. He found sparkling compounds by heating carbon arcs in a coke and clay mixture to make artificial diamonds.

“We can develop various related products”    

Acherson sees the material as a highly versatile material (silicon carbide) and starts selling it after patenting it as a carborundum.

It was initially used as a heating element for electric furnaces, but in recent years it is widely used in everything from LED lighting to telescopes. In particular, silicon carbide fiber is in the spotlight as a new material having high heat resistance and strength.

The University of Chicago team used the silicon carbide to stabilize the quantum state. And it was confirmed that this material has an excellent effect on stabilization of quantum states.

Many scientists who have been developing quantum computers have applied silicon to artificially create spaces where diamond defects are located and then use particles to process information in electrons.

The team at the University of Chicago also used the same approach, but it was difficult to build a stable quantum computer because of the unstable quantum state. In this situation, the experiment was conducted to create a space using silicon carbide instead of silicon, and finally found stable quantum states.

The team said in their paper that the findings have important implications for the development of quantum computers. If silicon carbide is used, quantum computing can be realized without major changes to existing communication systems.

The team also said that the technology could be implemented by integrating quantum computing into a variety of electronic products, and in fact, could create a quantum FM radio with high-level control.

In addition, light emitting device diodes can deliver stable quantum signals without noise or interference. Unstable quantum signals have been one of the obstacles to the development of quantum computers.

Professor Earthchalum said, “This research will shorten the commercialization period for quantum computers, and will bring quantum computing to early adoption, especially in fiber optic networks connecting countries around the world.”