Discrete phase-space structures and Wigner functions for N qubits

作者：Munoz C; Klimov A B; Sanchez Soto L^*

来源：Quantum Information Processing, 2017, 16(6): UNSP 158.

DOI：10.1007/s11128-017-1607-x

• Wigner function
• Mutually unbiased bases keyword
• Entanglement

We further elaborate on a phase-space picture for a system of N qubits and explore the structures compatible with the notion of unbiasedness. These consist of bundles of discrete curves satisfying certain additional properties and different entanglement properties. We discuss the construction of discrete covariant Wigner functions for these bundles and provide several illuminating examples.

• 出版日期2017-6