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arxiv: 1704.02749 · v3 · pith:DIEOGUC5new · submitted 2017-04-10 · 🪐 quant-ph

Magic informationally complete POVMs with permutations

classification 🪐 quant-ph
keywords magicstatescompletedimensionsgatesgroupinformationallypauli
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Eigenstates of permutation gates are either stabilizer states (for gates in the Pauli group) or magic states, thus allowing universal quantum computation [M. Planat and Rukhsan-Ul-Haq, Preprint 1701.06443]. We show in this paper that a subset of such magic states, when acting on the generalized Pauli group, define (asymmetric) informationally complete POVMs. Such IC-POVMs, investigated in dimensions $2$ to $12$, exhibit simple finite geometries in their projector products and, for dimensions $4$ and $8$ and $9$, relate to two-qubit, three-qubit and two-qutrit contextuality.

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