Precision Control and Randomized Benchmarking of a 12-us Class Superconducting Qubit
Abstract
This work addresses the randomized benchmarking (RBM) of a long-lived superconducting flux qubit (T1 = 12 us, T2E = 23 us). Our aim is to use this long-lived qubit to develop the precision calibration and control capabilities necessary to measure a RBM fidelity at the 99.9% level. During this reporting period, we have developed a calibration technique that images the envelope of the control pulse that arrives at the qubit. This accounts for quadrature pulse distortion within the dilution refrigerator. Using this technique and pulse predistortion, we achieved 99.814% RBM fidelity. In addition, we applied these calibrated pulses to dynamical decoupling and coherence studies of our superconducting qubits.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 28, 2013
- Accession Number
- ADA602606
Entities
People
- Terry P. Orlando
- William D Oliver
Organizations
- Massachusetts Institute of Technology