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quant-ph2026
Sharp bounds for perfect quantum state classification beyond antidistinguishability
Nathaniel Johnston, Benjamin Lovitz, Vincent Russo +1
A multiset of pure quantum states is said to be k-learnable if there is a measurement strategy that always narrows an unknown sample drawn from the list down to one of at most k ca…
quant-ph2026
PPT states of almost maximal Schmidt number
Nathaniel Johnston, Benjamin Lovitz
We construct PPT states on that have Schmidt number asymptotically approaching the smaller local dimension. More specifically, we construct a PPT…
quant-ph2026
Distinguishability of locally diagonal orthogonally invariant quantum states
Nathaniel Johnston, Vincent Russo
We study the distinguishability of quantum states under local operations with classical communication (LOCC), separable, and positive-partial-transpose (PPT) measurements, focusing…