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Superconducting Qubits
Majorana Qubit Readout Using Longitudinal Qubit-Resonator Interaction
arXiv
Authors: Arne L. Grimsmo, Thomas Smith
Year
2018
Paper ID
7488
Status
Preprint
Abstract Read
~2 min
Abstract Words
89
Citations
N/A
Abstract
We propose a quantum non-demolition Majorana qubit readout protocol based on parametricmodulation of a longitudinal interaction between a pair of Majorana bound states and a resonator. The interaction can be modulated through microwave frequency gate-voltage or flux control of a tunable tunnel barrier. The qubit-resonator coupling is quantum non-demolition to exponential accuracy, a property inherited from the topological nature of the Majorana zero modes. The same mechanism as used for single-qubit readout can also be extended to perform multi-qubit measurements and be used to enact long range entangling gates.
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- We propose a quantum non-demolition Majorana qubit readout protocol based on parametricmodulation of a longitudinal interaction between a pair of Majorana bound states and a...
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