TY - JOUR AU - Luis Aina, Alfredo AU - Sánchez Soto, Luis Lorenzo PY - 1993 DO - 10.1103/PhysRevA.48.752 SN - 1050-2947 UR - https://hdl.handle.net/20.500.14352/59835 T2 - Physical review A AB - The well-known difficulties of defining a phase operator of an oscillator are considered from the point of view of the canonical transformation to action and phase-angle variables. This transformation turns out to be nonbijective, i.e., it is not a... LA - eng M2 - 752 PB - American Physical Society KW - Quantum-mechanics TI - Canonical transformations to action and phase-angle variables and phase operators TY - journal article VL - 48 ER -