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arXiv · 1811.10875

Fast flux control of 3D transmon qubits using a magnetic hose

O. Gargiulo·S. Oleschko·J. Prat-Camps·M. Zanner·G. Kirchmair
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Abstract

Fast magnetic flux control is a crucial ingredient for circuit quantum electrodynamics (cQED) systems. So far it has been a challenge to implement this technology with the high coherence 3D cQED architecture. In this paper we control the magnetic field inside a superconducting waveguide cavity using a magnetic hose, which allows fast flux control of 3D transmon qubits on time scales < 100 ns. The hose is designed as an effective microwave filter to not compromise the energy relaxation time of the qubit. The magnetic hose is a promising tool for fast magnetic flux control in various platforms intended for quantum information processing and quantum optics.

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O. Gargiulo, S. Oleschko, J. Prat-Camps, M. Zanner, G. Kirchmair. 2018-11-27. Fast flux control of 3D transmon qubits using a magnetic hose. https://doi.org/10.1063/5.0032615

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