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The European Physical Journal D

Phase and amplitude control of microwave pulse in a linear array of superconducting artificial atoms

Mir Qad Ayaz, Sajid Qamar, Shahid Qamar

Published Oct 1, 2018• 1 citation
Publisher
DOI
10.1140/epjd/e2018-90202-0

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Abstract We study the coherent propagation of a microwave pulse through a one-dimensional array of artificial atoms. The scheme is based upon gain assisted propagation of the pulse using two-photon Raman transition in a three-level superconducting artificial atoms (SAAs) coupled to a microwave transmission line. Our results show that the group velocity can be significantly reduced by increasing the Rabi frequency of the pump fields which in turn can lead to an efficient storage of the pulse inside a 1D array of SAAs. Further, the intensity of the transmitted pulse increases with the number of artificial atoms owing to the gain associated with the two-photon Raman transition. Our results also show that the window width decreases for both scattering and negligible scattering cases with the increase in the number of SAAs. The fidelity of the system also remains high even after the passage of the pulse through a large number of SAAs.