Publikationsdatum:
2015-11-20
Beschreibung:
We realize the dark state in a three-dimensional transmon superconducting qutrit that consists of three cascading energy levels: | 0 ⟩ , | 1 ⟩ , and | 2 ⟩ . When the system is simultaneously driven with two tone microwaves on resonance with | 0 ⟩ , | 1 ⟩ and | 1 ⟩ , | 2 ⟩ , respectively, it is found that the state of the system will generally evolve in time domain. However, the qutrit state is frozen-out if it is initialized in a dark state for corresponding drive amplitudes. We observe this freeze-out phenomenon by changing the amplitude of the microwaves while fixing the initial state or vice versa.
Print ISSN:
0003-6951
Digitale ISSN:
1077-3118
Thema:
Physik
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