Japan realized a significant advancement in the development of quantum computers

One of the main focuses of the high-tech rivalry between the United States and China is quantum technology. To help foster the development of real-world quantum computing applications, the United States and Japan will jointly study the industrial production process for a new generation of semiconductors to be deployed in quantum computers. The latest development by the Japanese research team on qubit quantum gates to support high-speed quantum computers, is described as an epoch-making breakthrough in today’s quantum technology.
The double quantum qubit gates, a core computational component, has greatly speeded up the processing power of a quantum computer, according to research results published on August 9 in the academic Journal Nature Photonics by a team from Japan’s Okazaki Institute of Molecular Science.
The quantum computer’s quantum bit can represent the mutual coincidence of 0 and 1, as opposed to conventional computer’s bit, which can only be 0 or 1. The quantum bit is the basic building block of a quantum computer. Dramatic increase of processing speed can be achieved using a two-qubit gate with two coupled quantum bits, but the problem is that it is interfered by noise from the environment. The team was able to introduce a significant increase in speed adequate to eliminate the interference of noise by placing rubidium atoms frozen to nearly absolute zero one by one and irradiating them with laser light for only 100 billionths of a second.
6.5 nanoseconds, held by Google, was the previous World Record for the highest speed in a double quantum bit gate have now been surpassed, according to The Institute’s Professor Kenji Omori — a nanosecond is one billionth of a second. It is anticipated that this time will eventually be lowered to 1 nanosecond with the continuation of the current strategy. In addition to calling this an epoch-making achievement beyond the boundaries, Omori indicated that he would like to promote the development of a general-purpose quantum computer that is closer to the finished product.
The American and Japanese governments have been working together to industrialize quantum computing technology in an effort to compete with the Chinese Communist Party in this field. On July 27, 2021, the Japanese branch of IBM announced that IBM had launched Japan’s first industrial quantum computer.
Following Germany, where IBM have deployed an “IBM Quantum System One” quantum computer at its headquarters in Eningen on June 15, 2021, Japan became the second nation, beside the United States, to install an IBM’s quantum computer.Quantum computers are helpful in fields like code-cracking, big data optimization, weather forecasting and medical analysis because they can carry out large-scale calculations significantly faster than the best of any conventional computers.

Translator: OXV Translation Team
Design&editor: HBamboo(昆仑竹)

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