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

2019/04/08 by M. Stramacchia, Stramacchia, M., A. Ridolfo +11 · 1 citation
Physics and Astronomy · #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Quantum Physics (quant-ph) #cond-mat.mes-hall #quant-ph

paper · pdf · doi:10.48550/arxiv.1904.04141

2 figures

arxiv created 2019/04/08 · arxiv updated 2019/04/09

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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