Author

Shoumik Chowdhury

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Preprint Sep 2026

Bosonic Error Correction with Fluxonium

Bosonic quantum error correction (QEC) offers a hardware-efficient route to fault-tolerant quantum computing. To date, however, superconducting circuit implementations of bosonic codes have utilized centimeter-scale 3D microwave cavities controlled by fixed-frequency transmon qubits, with logical lifetimes limited by t...

Shantanu R. Jha, Shoumik Chowdhury, Gabriele Rolleri et al. · 0 citations

Preprint Sep 2026

Bosonic quantum control with a weakly coupled fluxonium qubit

Echoed Conditional Displacement (ECD) gates constitute a fundamental building block for quantum control of harmonic oscillator modes. However, bit-flips of the auxiliary qubit remain a dominant error mechanism for this kind of bosonic control. In this work, we present a numerical case study of a bit-flip protected flux...

Anaida Ali, Shantanu R. Jha, Shoumik Chowdhury et al. · 1 citation