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Systems of Imprimitivity for the Clifford Group
D. M. Appleby, Ingemar Bengtsson, Stephen Brierley +3
It is known that if the dimension is a perfect square the Clifford group can be represented by monomial matrices. Another way of expressing this result is to say that when the dime…
Attacks on quantum key distribution protocols that employ non-ITS authentication
Christoph Pacher, Aysajan Abidin, Thomas Lorünser +4
We demonstrate how adversaries with unbounded computing resources can break Quantum Key Distribution (QKD) protocols which employ a particular message authentication code suggested…
Optimal inequalities for state-independent contextuality
Matthias Kleinmann, Costantino Budroni, Jan-Åke Larsson +2
Contextuality is a natural generalization of nonlocality which does not need composite systems or spacelike separation and offers a wider spectrum of interesting phenomena. Most no…