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Superconducting Qubits Quantum Simulation

Development of a broadband reflective T-filter for voltage biasing high-Q superconducting microwave cavities

arXiv
Authors: Yu Hao, Francisco Rouxinol, M. D. LaHaye

Year

2014

Paper ID

47291

Status

Preprint

Abstract Read

~2 min

Abstract Words

118

Citations

N/A

Abstract

We present the design of a reflective stop-band filter based on quasi-lumped elements that can be utilized to introduce large dc and low-frequency voltage biases into a low-loss superconducting coplanar waveguide (CPW) cavity. Transmission measurements of the filter are seen to be in good agreement with simulations and demonstrate insertion losses greater than 20 {rm dB} in the range of {rm 3 to 10 GHz}. Moreover, transmission measurements of the CPW's fundamental mode demonstrate that loaded quality factors exceeding 105 can be achieved with this design for dc voltages as large as {rm 20 V} and for the cavity operated in the single-photon regime. This makes the design suitable for use in a number of applications including qubit-coupled mechanical systems and circuit QED.

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  • We present the design of a reflective stop-band filter based on quasi-lumped elements that can be utilized to introduce large dc and low-frequency voltage biases into a...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1409.7727 [2] arXiv https://arxiv.org/abs/1409.7727 [3] Publisher https://arxiv.org/abs/1409.7727

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