The XOR version of the monogamy-of-entanglement game has winning probability cos^2(pi/8) ~ 0.85 for every n, not exponentially decaying as conjectured.
Uncloneable Encryption from Decoupling
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We show that uncloneable encryption exists with no computational assumptions, with security $\widetilde{O}\left(\tfrac{1}{\lambda}\right)$ in the security parameter $\lambda$.
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The curious case of "XOR repetition" of monogamy-of-entanglement games
The XOR version of the monogamy-of-entanglement game has winning probability cos^2(pi/8) ~ 0.85 for every n, not exponentially decaying as conjectured.