Abstract
Contrary to the widespread belief that no phase observable exists which is canonically conjugate to the number operator, a selfadjoint operator is given with the right properties to be a firm candidate for the quantum phase. Its spectrum, commutation relations, uncertainty inequalities and classical limit are discussed.
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Galindo, A. Phase and number. Lett Math Phys 8, 495–500 (1984). https://doi.org/10.1007/BF00400979
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DOI: https://doi.org/10.1007/BF00400979