Channel capacity of small modular quantum networks in the ultrastrongly coupled regime
Salvatore Alex Cordovana, Luigi Giannelli, Nicola Macrì, Giuliano Benenti, Elisabetta Paladino, Giuseppe A. Falci
Published: 2025/7/16
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.