In step forward for quantum computing hardware, IU physicist uncovers novel behavior in quantum-driven superconductors

EurekAlert  November 12, 2024 An international team of researchers (India, USA – Indiana University) studied the transport signatures of unpaired Floquet Majorana fermions in the Josephson current of weakly linked, periodically driven topological superconductors. They obtained analytical expressions for the occupation of the Floquet Majorana fermions in the presence of weak coupling to thermal reservoirs, and showed that, similar to undriven topological superconductors, for sufficiently low temperatures and large systems the Josephson current involving Floquet Majorana fermions is in the phase difference across the junction and depends linearly on the coupling between superconductors. Unlike the static case, the amplitude of […]

Current noises of Majorana fermions

Phys.org  July 23, 2018 To detect Majorana fermions researchers in China used non-equilibrium Green’s function method, analyzed the current across a topological Josephson junction and related current noises, revealing the relation between the existence of Majorana fermions and non-equilibrium current noise. In condensed matter physics, zero-energy Majorana fermions obey non-abelian statistics, and can be used in fault-tolerant topological quantum computation… read more. TECHNICAL ARTICLE