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Taking photons as a storage unit?
- Dec 01, 2018 -

In recent years, the development of semiconductors has gradually come to the physical bottleneck. The speed of research and development of transistors cannot match Moore's Law. Some scientists have turned their attention to optics. At present, laboratories have developed chips that use optical paths to achieve calculations. Also quite competitive. Because of the ultra-fast speed of light movement, it is also suitable for developing high-speed data transmission, such as fiber-optic networks. Applicability can be said to be quite extensive.

 

Light can be regarded as a photon when it exhibits particle characteristics. Recently, the research team at the University of Basel in Switzerland has developed a memory using photons as a storage unit. This technology is believed to contribute significantly to future volume subnets due to its simplicity and speed.


In today's popular fiber-optic transmission, data travels at the speed of light in the fiber-optic cable. When the data is transmitted to the receiving end, the receiving end must also store the data quickly and without error, and then convert it into an electronic signal. The computer is further used. In order to avoid data reception errors, each bit of data is processed with pulsed light containing several hundred photons.

 

In the past few years, scientists have been trying to develop methods that use only a few photons to process a single bit of data, which will greatly increase its efficiency and will become the key to the future development of quantum transmission and quantum computers. In this experiment, the research team successfully stored photons in gaseous helium atoms and used lasers to control storage and reading data. Helium atoms can be easily vaporized due to their characteristics, and are often used in atomic laser manipulation techniques. In addition, this technology does not require the use of cooling devices or complex vacuum equipment, which also significantly reduces costs and increases commercial availability.

 

The person in charge of the experiment said that because of the simple setup of this technology and the low noise, it is very optimistic about future applications in the quantity subnet.

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