Research Talks
2.5D cQED Coherence: Exploring Drawbridge Transmon Coherence
A group-meeting style research talk on a multilayer (2.5D) architecture that combines qubits and whispering-gallery-mode resonators using only wafers. It reports proof-of-concept device parameters, improves dephasing with dynamical decoupling and reconstructs a noise spectrum, and studies quasiparticle injection with tracked qubit jumps, suggesting quasiparticle diffusion and trapping by vortices as a plausible explanation of the fast equilibration.
- Goals of the 2.5D multilayer architecture and the wafer-assembled whispering-gallery resonator
- System parameters and the photon-number-splitting regime; storage T1 from parity measurements
- Dynamical decoupling as a noise filter to extend T2 and reconstruct the noise spectrum
- Quasiparticle injection experiments with quantum-jump readout, compared across qubit types
Summary and key points drafted by a language model from the slides, not yet reviewed by me. The slides are the source.
Cite
@misc{minev201525d,
author = {Zlatko K. Minev},
title = {{2.5D cQED Coherence: Exploring Drawbridge Transmon Coherence}},
howpublished = {Talk},
year = {2015},
url = {https://zlatko-minev.github.io/zlatko-minev-quantum-repository/items/2015-2-5d-cqed-coherence-exploring-drawbridge-transmon/},
note = {Slides}
}Reuse
Unless a deck says otherwise, the slides and notes here are © Zlatko K. Minev and shared under CC BY-NC-ND 4.0: you're welcome to read, download and share them, unchanged and non-commercially, with credit and a link back. Commercial use or a reworked slide or figure in your own talk, course or paper needs permission; please ask, the answer is usually yes. If you use something in teaching or a publication, I'd love a short note telling me where.
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