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quant-ph2026
A threshold for maximal Schmidt number from spectrum
Junhyeong An, Soojoon Lee
The Schmidt number quantifies the dimensionality of entanglement in bipartite quantum states. We investigate when the spectrum of a state on alo…
quant-ph2026
Beyond the Positive Partial Transpose Squared Conjecture: The Qutrit Case
Junhyeong An, Soojoon Lee
Entanglement swapping is a fundamental operation in quantum repeaters for establishing entanglement between distant parties. The positive partial transpose (PPT) squared conjecture…