Superconductivity News: What Makes Floquet Majorana Fermions Special for Quantum Computing?
1 min read
Summary
Researchers from the US and India have suggested that Floquet Majorana fermions could be used to control superconducting currents, potentially improving the stability and reducing errors in quantum computing.
Majorana fermions, which are their own antiparticles, can exist as quantum excitations in materials known as topological superconductors, and their behaviour is protected by the topology of the material.
Superconductivity is the phenomenon of almost no electrical resistance in certain materials at low temperatures, and in regular superconductors a current can be induced without an applied voltage, due to the Josephson effect.
The researchers believe that by tuning the Josephson current using the “chemical potential” of a topological superconductor, they can gain a new level of control over quantum materials.
Their theoretical proposal was validated using numerical simulations.
