The authors of the new work created a functional quantum processor and tested it - they simulated
To make such a leap in quantum computing, the researchers used a scanning tunneling microscope in ultra-high vacuum to place quantum dots with sub-nanometer precision.
The location of each quantum dot must be correct. So the scheme will be able to simulate the process of moving electrons in a polyacetylene molecule along a chain of singly and doubly bonded carbon atoms.
The hardest part was figuring out exactly how muchphosphorus atoms should be in each quantum dot; How far apart should the points be? and then develop a machine that could place the tiny dots perfectly right inside a silicon chip.
In the final version, the quantum chip consisted of 10 dots, each of which contained a small number of phosphorus atoms.
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