Quantum Information with Solid-State Devices VO 141.A55 SS2016 - PowerPoint PPT Presentation

Quantum Information with Solid-State Devices VO 141.A55 SS2016 Dr. Johannes Majer Lecture 10

Transmon Qubit Resonator

E J /E C =0.1 6 5 4 Energy (4E C ) 3 2 1 0 − 3 − 2 − 1 0 1 2 3 Gate Charge n g

E J /E C =4 10 9 8 7 6 Energy (4E C ) 5 4 3 2 1 0 − 3 − 2 − 1 0 1 2 3 Gate Charge n g

Transmon

Coaxial Line r o r i ε r

Transmission Line Resonator B E Coplanar Waveguide - - + +

Transmission Line Resonator Z0 C in C out 1 2 L » S 21 » 2 1.0 0.8 0.6 0.4 0.2 Ν 0.5 1.0 1.5 2.0 2.5 3.0 3.5

Superconducting Resonator Q: 491205.9163 f: 6.3036384e+09 − 26 − 28 − 30 − 32 − 34 S 21 (dB) − 36 − 38 − 40 − 42 − 44 − 46 6.30358 6.3036 6.30362 6.30364 6.30366 6.30368 6.3037 Frequency (GHz)