Quantum researchers at Delft recognize flaw in Majorana particle search – IT Pro

Researchers at QuTech and Microsoft recognize processing errors in their quantitative research on Majorana particles and have officially removed them. The team realized earlier this year that there was uncertainty about the research results.

at Recoil note in the wild The researchers admit to making mistakes during the investigation. In their own words, quantum researchers can no longer claim to have observed majorana quasiparticles. The researchers again said in February that there were doubts about the original 2018 study, when they announced the report would be withdrawn. Next, the team released a new report Which researchers mentioned that there were several Questions We have arrived.

Researchers are now tackling these problems. This was suggested by Sergey Frolov and Vincent Morik, who pointed out the team’s “various gaps” between the initial measurement data and the results reported in the research report. The researchers then re-examined the data and concluded that the study results “had been unnecessarily corrected.”

The team also reported that a “re-calibration of conductivity” changed the original peak values, a review of the test found. Therefore, the initial observations were deemed to be incorrect. The team wrote: “We apologize to the community for the lack of scientific accuracy of the original manuscript.” Preliminary data from Majorana Research is now available, also generic.

QuTech, the Quantum Technology Research Center at Delft University of Technology and TNO, lets in Statement He learned that the research retraction was “a setback in Majorana’s research in the development of quantum computing “. QuTech says it will continue to research Majorana quasiparticles and will also continue to collaborate with Microsoft.

to the Original Experiments of 2018 They were performed on chips with an array of nanohashtage labels of semiconductors and nanowires superimposed with a superconducting layer, as well as two putative Majoranas superimposed on the ends of the chips. Researchers used specific electric and magnetic fields Zero biasReal peaks, something that can only be explained by the presence of Majorana.

The height of these peaks fully coincides with previous expectations, which the researchers said were an important indicator of the existence of such particles. Therefore, these results have been revised and withdrawn. The research was conducted by Dutch researcher Leo Kouwenhoven and his team at Microsoft and QuTech.

There have been doubts about the search for Majorana particles for some time. Speaking in May 2020 Delta, the press platform of TU Delft, has already raised doubts about the 2018 study, which claimed there was conclusive evidence for the existence of the Majorana quasiparticle. Then I wrote delta about potential raw data processing errors. This is now confirmed by the research team.