Generating Gottesman–Kitaev–Preskill Qubit States Using Integrated Photonic Chip
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gnabgib
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Summary
The article discusses the generation of Gottesman–Kitaev–Preskill (GKP) qubit states using an ultra-low-loss integrated photonic chip, paving the way for fault-tolerant photonic quantum computing. The states exhibit critical features necessary for fault tolerance and could lead to the development of arrays of GKP sources for future quantum machines.
Key quotes
· 3 pulledHigh-purity sources of such states invariably rely on parametric nonlinear optical interactions and photon counting.
Existing pioneering demonstrations generating optical GKP states have relied on free-space optical components, hindering the scaling eventually required for a utility-scale system.
Our GKP states show sufficient structure to indicate that the devices used to make them could yield states for the fault-tolerant regime.
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