The microscopic processes taking place in superconductors are difficult to observe directly. Researchers at the RPTU University of Kaiserslautern-Landau have therefore implemented a quantum simulation ...
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'Invisible' processes of quantum standard volt visualized in a first with ultracold atoms
Some of the most important quantum effects powering today’s technology happen on scales that are almost impossible to see. One such phenomenon, called the Josephson effect, lies at the heart of ...
The research was published in the journal Science ("Observation of Shapiro steps in an ultracold atomic Josephson junction"). Two superconductors separated by a wafer-thin insulating layer – that's ...
The experiment takes place in a vacuum chamber, where ultracold atomic clouds with a temperature of 30 nK are generated via laser cooling. Pictured: Professor Herwig Ott and Dr. Erik Bernhart. They ...
They enable high-precision measurements, define the unit of voltage, and form the heart of many quantum computers – the so-called Josephson contacts. However, the microscopic processes taking place in ...
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