Defines witness E_NG whose ceiling lower-bounds the Gaussian-irreducible Schmidt number, creating an operational hierarchy for non-Gaussian entanglement in continuous-variable systems.
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Finite stellar rank creates a trade-off between state-preparation cost and QEC performance for bosonic codes, with rank k=2 optimized encodings surpassing break-even under dephasing.
For generalized coherent states, the normalized intensity-field correlation deviating from unity is a sufficient nonclassicality witness, with a closed form for Kerr states.
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Non-Gaussian Entanglement Hierarchy Based on the Schmidt Number
Defines witness E_NG whose ceiling lower-bounds the Gaussian-irreducible Schmidt number, creating an operational hierarchy for non-Gaussian entanglement in continuous-variable systems.
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Bosonic quantum error-correcting codes with finite stellar rank
Finite stellar rank creates a trade-off between state-preparation cost and QEC performance for bosonic codes, with rank k=2 optimized encodings surpassing break-even under dephasing.
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Characterization of Generalized Coherent States through Intensity-Field Correlations
For generalized coherent states, the normalized intensity-field correlation deviating from unity is a sufficient nonclassicality witness, with a closed form for Kerr states.