Southwest Quantum Information and Technology

Polynomial Monogamy Relations

Grant Allen, University of California, San Diego

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Entanglement negativity naturally captures the monogamous nature of multiple qubits. Monogamy, at least to quantum physicists, tends to conjure up a linear inequality involving a party's correlations with the rest of the system. In this talk, we show that negativity only trivially saturates the inequality, and we find a much tighter inequality in general. Our methods then shed light on the shareability of negativity in larger systems.