Swedish scientists simulate the operation of the quantum computer on classic computers

A group of researchers claims to have simulated the functioning of a quantum computer in a classical computer, a result that according to the same scientists at the University of Linköping, Sweden, who carried out the research, could be crucial to understanding how to build quantum computers in the future.

The study was conducted by Professor Jan-Åke Larsson and his student Niklas Johansson of the Department of Electrical Engineering at the Swedish University. It is Larsson himself who explains the results of the study: “We have shown that the main difference is that quantum computers have two degrees of freedom for each bit. By simulating an extra degree of freedom in a classical computer, we can run some of the algorithms at the same speed as they would have reached in a quantum computer. ”

The researchers built a new simulation software called Quantum Simulation Logic, QSL, with which they could simulate the way in which a quantum computer works in a classical computer.

According to Larsson, “each bit has two degrees of freedom: it can be compared to a mechanical system in which each part has two degrees of freedom – position and speed. In this case, we deal with the calculation bits – which contain information about the result of the function and the phase bits – which contain information about the structure of the function.”

According to the scientist, the results obtained with this research can make the construction of the same quantum computers easier in the future, because it is now known which property is more important for it to work.

See also:

https://liu.se/en/news-item/de-sprider-ljus-over-kvantdatorn

https://www.mdpi.com/1099-4300/21/8/800

Image source:

https://blog.daimler.com/wp-content/uploads/2018/10/IBM-Q-QC-Bild-3_neu-1-1200×675.jpg

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Martin Hill

An accomplished journalist and freelancer, Martin has held a long career in media and has worked for numerous different agencies. He was an editor for the Arizona Business Gazette for over 10 years before joining the Tucson Weekly (tucsonweekly.com) and founding Home of Science, a new publication with the aim of reporting on science news over the internet. Beyond having extensive writing and research experience, Martin is also a science enthusiast with a passion for science and technology. In his younger life, he had studied mechanical engineering before moving on to journalism.
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