Researchers have redefined our understanding of quantum vortices in superconductors, showing that they can contain fractional quantum flux, contrary to previous theories. This breakthrough discovery, involving manipulating quantum vortices, opens up new potential applications in superconducting electronics and computing.
Within superconductors little tornadoes of electrons, known as quantum vortices, can occur which have important implications in superconducting applications such as quantum sensors. Now a new kind of superconducting vortex has been found, an international team of researchers reports.
Egor Babaev, professor at KTH Royal Institute of Technology in Stockholm, says the study revises the prevailing understanding of how electronic flow can occur in superconductors, based on work about quantum vortices that was recognized in the 2003 Nobel Prize award. The researchers at KTH, together with researchers from Stanford University, TD Lee Institute in Shanghai and AIST in Tsukuba, discovered that the magnetic flux produced by vortices in a superconductor can be divided up into a wider range of values than thought.
That represents a new insight into the fundamentals of superconductivity, and also potentially can be applied in superconducting electronics.
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