AI Article Synopsis
- We suggest using a special type of qubit called an ancilla fluxonium qubit to interact with another qubit made from Majorana modes within a topological wire.
- The interaction leverages a unique effect that occurs when the Majorana qubit influences the flux in the fluxonium qubit.
- This setup can help detect topological superconductivity, measure the Majorana qubit's state, perform two-qubit operations, and create quantum memories that are robust against errors.
Article Abstract
We propose to use an ancilla fluxonium qubit to interact with a Majorana qubit hosted by a topological one-dimensional wire. The coupling is obtained using the Majorana qubit-controlled 4π Josephson effect to flux bias the fluxonium qubit. We demonstrate how this coupling can be used to sensitively identify topological superconductivity, to measure the state of the Majorana qubit, to construct 2-qubit operations, and to implement quantum memories with topological protection.
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| http://dx.doi.org/10.1103/PhysRevLett.111.107007 | DOI Listing |
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