Qubit-Coupled Mechanics - IFSC
Qubit-Coupled Mechanics - IFSC
Qubit-Coupled Mechanics - IFSC
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LC Circuit Read-out of <strong>Qubit</strong> vs. Applied B-field<br />
• LC response modulates<br />
periodically with applied<br />
magnetic field:<br />
E J ∝ cos (πΦ/Φ 0 )<br />
LC Probe Frequency (GHz)<br />
1.96<br />
1.95<br />
1.94<br />
Amplitude<br />
0.0<br />
-5.0<br />
-10.0<br />
Transmission Amplitude (dB)<br />
LC Probe Frequency (GHz)<br />
1.96<br />
1.95<br />
1.94<br />
Phase<br />
*fridge temperature ≲ 30 mK*<br />
1.0<br />
0.5<br />
0.0<br />
-0.5<br />
Transmission Phase (rad.)<br />
-5.0 5.0 15.0 25.0 35.0<br />
Magnet Current (mA)