Research Talks
2.5D Circuit Quantum Electrodynamics (cQED): Whispering Gallery Modes
Motivated by combining wafer-scale fabrication with the coherence of 3D cavities, the talk shows how thin-film rings form high-Q whispering-gallery modes that keep energy in vacuum, and reviews their measured coherence and material-loss bounds. It then couples a transmon to the ring, uses an energy-participation reformulation of black-box quantization ('Energy BBQ') to compute the Hamiltonian, and presents early results on tuning cross-Kerr by qubit angle.
- Ring resonators as physical periodic boundary conditions, with conformal-map intuition
- Mode identification and bounds on thin-film Al resistance and sapphire loss tangent
- Energy participation ratios as a route from one simulation to Hamiltonian, couplings and loss
- Qubit placement around the ring for selective coupling and cross-Kerr tuning, with first device results
Summary and key points drafted by a language model from the slides, not yet reviewed by me. The slides are the source.
Cite
@misc{minev201425d,
author = {Zlatko K. Minev},
title = {{2.5D Circuit Quantum Electrodynamics (cQED): Whispering Gallery Modes}},
howpublished = {Talk},
year = {2014},
url = {https://zlatko-minev.github.io/zlatko-minev-quantum-repository/items/2014-2-5d-circuit-quantum-electrodynamics-cqed-whispering/},
note = {Slides}
}Reuse
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