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arXiv · 1509.01619

Planar multilayer circuit quantum electrodynamics

Z. K. Minev·K. Serniak·I. M. Pop·Z. Leghtas·K. Sliwa·M. Hatridge·L. Frunzio·R. J. Schoelkopf·M. H. Devoret
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Abstract

Experimental quantum information processing with superconducting circuits is rapidly advancing, driven by innovation in two classes of devices, one involving planar micro-fabricated (2D) resonators, and the other involving machined three-dimensional (3D) cavities. We demonstrate that circuit quantum electrodynamics can be implemented in a multilayer superconducting structure that combines 2D and 3D advantages. We employ standard micro-fabrication techniques to pattern each layer, and rely on a vacuum gap between the layers to store the electromagnetic energy. Planar qubits are lithographically defined as an aperture in a conducting boundary of the resonators. We demonstrate the aperture concept by implementing an integrated, two cavity-modes, one transmon-qubit system.

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Z. K. Minev, K. Serniak, I. M. Pop, Z. Leghtas, K. Sliwa, M. Hatridge, L. Frunzio, R. J. Schoelkopf, M. H. Devoret. 2016-05-29. Planar multilayer circuit quantum electrodynamics. https://doi.org/10.1103/physrevapplied.5.044021

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