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Moving to the pairs of excited states above the ground state manifold, do they also present observable degeneracies as a function of \(\Delta /K\) like the ground state manifold? How robust are these degeneracies to perturbations? We present excited state experimental observations and understand them from a quantum and semiclassical perspective.

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Excited State Manifold: Spectral Kissing, Multilevel Degeneracies, and Their Fingerprint on the Qubit Lifetime

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  • 发表日期：

    2025年

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  • Jayameenakshi Venkatraman

摘要

Moving to the pairs of excited states above the ground state manifold, do they also present observable degeneracies as a function of \(\Delta /K\) like the ground state manifold? How robust are these degeneracies to perturbations? We present excited state experimental observations and understand them from a quantum and semiclassical perspective.