dorsal/arxiv
View SchemaMulticomplementary operators via finite Fourier transform
| Authors | A. B. Klimov, L. L. Sanchez-Soto, H. de Guise |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0410155 |
| URL | https://arxiv.org/abs/quant-ph/0410155 |
| DOI | 10.1088/0305-4470/38/12/015 |
| Journal | Journal of Physics A 38, 2747--2760 (2005) |
Abstract
A complete set of d+1 mutually unbiased bases exists in a Hilbert spaces of dimension d, whenever d is a power of a prime. We discuss a simple construction of d+1 disjoint classes (each one having d-1 commuting operators) such that the corresponding eigenstates form sets of unbiased bases. Such a construction works properly for prime dimension. We investigate an alternative construction in which the real numbers that label the classes are replaced by a finite field having d elements. One of these classes is diagonal, and can be mapped to cyclic operators by means of the finite Fourier transform, which allows one to understand complementarity in a similar way as for the position-momentum pair in standard quantum mechanics. The relevant examples of two and three qubits and two qutrits are discussed in detail.
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"abstract": "A complete set of d+1 mutually unbiased bases exists in a Hilbert spaces of\ndimension d, whenever d is a power of a prime. We discuss a simple construction\nof d+1 disjoint classes (each one having d-1 commuting operators) such that the\ncorresponding eigenstates form sets of unbiased bases. Such a construction\nworks properly for prime dimension. We investigate an alternative construction\nin which the real numbers that label the classes are replaced by a finite field\nhaving d elements. One of these classes is diagonal, and can be mapped to\ncyclic operators by means of the finite Fourier transform, which allows one to\nunderstand complementarity in a similar way as for the position-momentum pair\nin standard quantum mechanics. The relevant examples of two and three qubits\nand two qutrits are discussed in detail.",
"arxiv_id": "quant-ph/0410155",
"authors": [
"A. B. Klimov",
"L. L. Sanchez-Soto",
"H. de Guise"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/0305-4470/38/12/015",
"journal_ref": "Journal of Physics A 38, 2747--2760 (2005)",
"title": "Multicomplementary operators via finite Fourier transform",
"url": "https://arxiv.org/abs/quant-ph/0410155"
},
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