This is a very recent development, but I have decided to give everyone heads up. During a discussion last week we have uncovered a serious concern with our last year’s Science paper, that is likely to invalidate our conclusions regarding the observations of the signatures of Majorana fermions. There will most certainly be a retraction submitted to Science. Turns out, during our experiments we have overlooked a widely known reason for the observation of a zero-bias peak, which can be mistaken for Majorana. This same explanation will for sure apply for five other experiments that report zero-bias peaks. And the 200 theory papers that were published since will need to revise their optimistic statements. (Actually I am quite surprised that nobody pointed this out to us earlier).
The non-Majorana explanation, as reported by Uspensky in 1973 is the Cheburashka effect. Apparently, zero-bias peaks were observed very clearly when one of the persons performing experiments had really-really very big ears. (You know who you are!!)
Happy April 1st everyone!
P.S. Those other five experiments should still look carefully at their data.
You must be logged in to post a comment.