Abstract
The concept of mutually unbiased bases is studied for N pairs of continuous variables. To find mutually unbiased bases reduces, for specific states related to the Heisenberg-Weyl group, to a problem of symplectic geometry. Given a single pair of continuous variables, three mutually unbiased bases are identified while five such bases are exhibited for two pairs of continuous variables. For N=2, the golden ratio occurs in the definition of these mutually unbiased bases suggesting the relevance of number theory not only in the finite-dimensional setting.
Original language | English |
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Article number | 020303 |
Number of pages | 4 |
Journal | Physical Review A |
Volume | 78 |
Issue number | 2 |
DOIs | |
Publication status | Published - 29 Aug 2008 |
Keywords
- STATE DETERMINATION
- COHERENT STATES
- HILBERT-SPACE
- QUANTUM