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Quantum-Memory Sweet Spots Can Be Found Again
A full-Hessian search balances modeled dephasing and microwave control, then numerically relocates operating points after parameter drift.
Summary
A full-Hessian search balances modeled dephasing and microwave control, then numerically relocates operating points after parameter drift.
For erbium-167 in yttrium orthosilicate, the authors search zero-first-order-Zeeman operating points with an anisotropic field-covariance model from the host lattice. Four Pareto-optimal transition pairs trade modeled magnetic pure-dephasing time against microwave control authority. In an assumption-based Hamiltonian-uncertainty analysis, every sampled perturbation shifted the nominal field coordinate, but numerical vector-field recalibration recovered the Pareto points. The very long modeled lifetimes remain conditional on the adopted bath and correlation assumptions and on operation near 10 millikelvin.
Why it matters
A full-Hessian search balances modeled dephasing and microwave control, then numerically relocates operating points after parameter drift.
Limits and context
- The very long modeled lifetimes remain conditional on the adopted bath and correlation assumptions and on operation near 10 millikelvin.
Key claims
A full-Hessian search balances modeled dephasing and microwave control, then numerically relocates operating points after parameter drift.
Qualification: The very long modeled lifetimes remain conditional on the adopted bath and correlation assumptions and on operation near 10 millikelvin.
Evidence: source-2026-11-08-015
Sources
- arXiv preprint 2611.08396, original v1arXiv · primary research
Corrections
No corrections have been recorded for this story.