Luis Aina, AlfredoSánchez Soto, Luis Lorenzo2023-06-202023-06-201995-011050-294710.1103/PhysRevA.51.861https://hdl.handle.net/20.500.14352/59839© 1995 The American Physical Society.In response to the objection raised by Pegg and Vaccaro [the preceding Comment] we point out that their example is not a difhculty in directly representing the phase difference by the φ12 operator. In fact, we argue that it is a property common to a wide range of phase descriptions, including the Pegg-Barnett formalism.engjournal articlehttp://dx.doi.org/10.1103/PhysRevA.51.861http://journals.aps.org/open access535Quantum-theoryÓptica (Física)2209.19 Óptica Física