Journal
QUANTUM INFORMATION PROCESSING
Volume 8, Issue 2-3, Pages 217-243Publisher
SPRINGER
DOI: 10.1007/s11128-009-0099-8
Keywords
Decoherence; Superconducting qubits; Flux qubit; SQUIDs
Funding
- NSF
- AFOSR
- NSA
- DURINT program
Ask authors/readers for more resources
We report measurements of coherence times of an rf SQUID qubit using pulsed microwaves and rapid flux pulses. The modified rf SQUID, described by an double-well potential, has independent, in situ, controls for the tilt and barrier height of the potential. The decay of coherent oscillations is dominated by the lifetime of the excited state and low frequency flux noise and is consistent with independent measurement of these quantities obtained by microwave spectroscopy, resonant tunneling between fluxoid wells and decay of the excited state. The oscillation's waveform is compared to analytical results obtained for finite decay rates and detuning and averaged over low frequency flux noise.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available