Classical Physics

    

Understanding Magnetic Hose

Authors: Abhijit Bhattacharyya

Fast magnetic flux control is important for circuit quantum electrodynamics (cQED) to control qubit precisely. The $3D$ superconducting microwave resonators posses higher volumes turning them to insensitive to surface dielectric losses resulting in higher $Q$ values in comparison to $2D$ resonators which have higher dissipation due to surface losses. Thus $3D$ resonators increase the decoherence time. Although this makes a strong reason to opt for $3D$ superconducting resonators while it is difficult to tune the qubit using fast magnetic field accurately from outside the $3D$ resonator. In this paper, we try to understand transporting the magnetic filed inside a cylindrical superconducting cavity implementing a cylindrical magnetic hose using finite element analysis.

Comments: 9 Pages. Data is available upon requet.

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Submission history

[v1] 2026-04-03 06:03:20

Unique-IP document downloads: 166 times

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