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Author

Shubham P. Jain

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2 papers indexed here

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Preprint Oct 2026

Quantum codes in the Lee metric

We introduce a quantum coding framework for discrete small-shift noise, in which errors on qudits are modeled as low-weight $X$- and $Z$-type Pauli shifts, analogous to small phase-space displacements in continuous-variable systems. This structure is approximately respected by nuclear-spin noise and captured by the Lee...

Jin-Kang Guo, Yi-Qiu Han, Aranya Chakraborty et al. · 1 citation · ⚡1
Preprint Sep 2026

Monolithic Quantum Error Correction in the Presence of Distinguishability

Quantum error-correcting codes require that the environment cannot distinguish relevant error processes acting on different codewords. In practice, residual Zeeman, Stark, or anharmonic interactions shift the underlying states, making errors distinguishable and weakening the conditions for perfect recovery. We study th...

Shubham P. Jain, Eric R. Hudson, Wesley C. Campbell et al. · 1 citation

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