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.
Speedup of Adiabatic Multiqubit State-Transfer by Ultrastrong Coupling of Matter and Radiation
Ridolfo, Alessandro;Paladino, Elisabetta;Pellegrino, Francesco;MACCARRONE, DANIELE GINO;Falci, Giuseppe
2019-01-01
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.File in questo prodotto:
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