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Author

Kaustav Chatterjee

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Preprint Aug 2026

Finite-energy GKP-QPC architectures for photonic quantum memories and repeaters

Photonic quantum networks require error-correction architectures that remain useful with finite-energy bosonic states, pure-loss fiber transmission, and explicit resource accounting. In this light, we study a concatenated architecture in which each physical rail is a finitely squeezed Gottesman--Kitaev--Preskill (GKP)...

Kaustav Chatterjee, Ulrik L. Andersen · 0 citations
Preprint Sep 2026

The logical set of Gaussian states under the stabilizer subsystem decomposition

Universal quantum computation requires non-Gaussianity in continuous-variable systems and non-stabilizerness in discrete-variable systems. Yet, mapping a Gaussian state into the Gottesman-Kitaev-Preskill logical subspace can yield a logical qubit with non-stabilizer resources. To understand how the continuous-variable...

S. Zamora, Kaustav Chatterjee, Ulrik L. Andersen et al. · 0 citations

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