Abstract
We address generalized measurements of linear multimode operators and discuss some aspects relevant to constructing angle operators for arbitrary quadratic Hamiltonian systems via Weyl-ordered expansions in terms of position and momentum operators.
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Prepared from an English manuscript submitted by the authors; for the Russian version, see Teoreticheskaya i Matematicheskaya Fizika, Vol. 160, No. 1, pp. 59–68, July, 2009.
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Gianfreda, M., Landolfi, G. & Paris, M.G.A. Quantum phase problem for harmonic and time-dependent oscillator systems. Theor Math Phys 160, 925–932 (2009). https://doi.org/10.1007/s11232-009-0082-7
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DOI: https://doi.org/10.1007/s11232-009-0082-7