Design and Testing of Superconducting Microwave Passive Components for Quantum Information Processing

Details Design and Testing of Superconducting Microwave Passive Components for Quantum Information Processing Design and Testing of Superconducting Microwave Passive Components for Quantum Information Processing

2010-10-15

arxiv.org/abs/1010.3232v1

Physics

Quantum Physics

Scientific paper

We report on the design, fabrication and testing of two superconducting passive microwave components, a quadrature hybrid and a 20 dB directional coupler. These components are designed to be integrated with superconducting qubits or Josephson parametric amplifiers and used in quantum information processing applications. For the coupler, we measure return loss and isolation > 20 dB, and insertion loss < 0.3 dB in a 2 GHz band around 6 GHz. For the hybrid performance, we measure isolation > 20 dB and insertion loss < 0.3 dB in a 10% band around 6.5 GHz. These values are within the design specifications of our application; however, we find a 7% difference between the designed and measured center frequency for the hybrid.

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