Quasi-energies of coupled qubits: Magnus-Floquet states and their probing by weak signalстатья
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Дата последнего поиска статьи во внешних источниках: 17 июля 2019 г.
Аннотация:The behaviour of two coupled qubits in a periodic electromagnetic field of arbitrary amplitude was investigated. Quasienergy levels of the system as a function of the driving field parameters and the qubit coupling energy were found on the basis of the Floquet theory and the Magnus approximation. It is shown that the quasienergy levels may intersect depending on the control parameters. This fact can manifest itself as appearance of the novel resonances and interesting nonlinear phenomena.