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arXiv · 1904.04141

Speedup of adiabatic multiqubit state-transfer by ultrastrong coupling of matter and radiation

M. Stramacchia·A. Ridolfo·G. Benenti·E. Paladino·F. M. D. Pellegrino·G. D. Maccarrone·G. Falci
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Abstract

Ultrastrongly coupled quantum hardware may increase the speed of quantum state processing in distributed architectures, allowing to approach fault-tolerant threshold. We show that circuit QED architectures in the ultrastrong coupling regime, which has been recently demonstrated with superconductors, may show substantial speedup for a class of adiabatic protocols resilient to the main source of errors, namely the interplay of dynamical Casimir effect and cavity losses.

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M. Stramacchia, A. Ridolfo, G. Benenti, E. Paladino, F. M. D. Pellegrino, G. D. Maccarrone, G. Falci. 2019-04-08. Speedup of adiabatic multiqubit state-transfer by ultrastrong coupling of matter and radiation. https://arxiv.org/abs/1904.04141

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