Toroidal qubits: Naturally-decoupled quiet artificial atoms

Alexandre M. Zagoskin, Arkadi Chipouline, Evgeni Ilichev, J. Robert Johansson, Franco Nori

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


The requirements of quantum computations impose high demands on the level of qubit protection from perturbations; in particular, from those produced by the environment. Here we propose a superconducting flux qubit design that is naturally protected from ambient noise. This decoupling is due to the qubit interacting with the electromagnetic field only through its toroidal moment, which provides an unusual qubit-field interaction, which is suppressed at low frequencies.

Original languageEnglish
Article number16934
JournalScientific Reports
Publication statusPublished - 26 Nov 2015
Externally publishedYes


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