title: Light spin forces in optical traps: comment on "Trapping metallic Rayleigh particles with radial polarization".
abstract: An incomplete modeling of the scattering forces on a Rayleigh particle without taking into account the light spin forces in "Trapping metallic Rayleigh particles with radial polarization" by Q. Zhan, leads to erroneous statements on the advantages of using radial polarization to trap metallic particles.
authors.affiliation: Departmento de Física, Universidad de Murcia, Campus de Espinardo, E-30100, Murcia, Spain. iic@um.es
authors.forename: Ignacio
authors.initials: I
authors.lastname: Iglesias
authors.forename: Juan José
authors.initials: JJ
authors.lastname: Sáenz