Kitaev-chains device and methods of operating the device

Abstract

The disclosure relates to a Kitaev-chains device (1) and methods of operating the device. The Kitaev-chains device (1) comprises: a plurality of gate-controlled semiconductorsuperconductor-based Kitaev-chains modules (100), each Kitaev-chains module (101) comprising a plurality of respective Kitaev-chains (101-1; 101-2) and a respective superconductor element (301) forming part of the respective Kitaev-chains (101-1; 101-2); a superconductor (300) connecting the superconductor elements (301, 303) of the plurality of Kitaev-chains modules (100); and a signal module (500) configured to control radio-frequency, RF, signals on the superconductor (3 00) to control one or more of the plurality of Kitaev-chains modules (100). The invention has applications in quantum computing and quantum simulations, for example by a quantum computer that includes one or more instances of the Kitaev-chains device. [Fig. la]