Channel capacity of small modular quantum networks in the ultrastrongly coupled regime

2025/07/16 by Salvatore Alex Cordovana, Cordovana, Salvatore Alex, Luigi Giannelli +9
Computer Science · Physics and Astronomy · #FOS: Physical sciences #Other Condensed Matter (cond-mat.other) #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Physics (quant-ph) #Quantum optics and atomic interactions

paper · pdf · doi:10.48550/arxiv.2507.12020

openalex publication_date 2025/07/16 · openalex created_date 2025/10/14 · openalex updated_date 2026/08/02

Abstract

We investigate state-transfer in modular quantum computer architectures exploiting the ultrastrong coupling regime of interaction between quantum processing units and ICs. We show that protocols based on adiabatic coherent transport may achieve near-ideal single-letter quantum capacity and robustness against parametric fluctuations suppressing leakage induced by the dynamical Casimir effect.

Citations

• Roadmap on STIRAP applications
• Speedup of adiabatic multiqubit state-transfer by ultrastrong coupling of matter and radiation

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