Tavares, MRS2014-05-202014-05-202005-11-01Physical Review B. College Pk: American Physical Soc, v. 72, n. 20, 2 p., 2005.1098-0121http://hdl.handle.net/11449/23969We comment on the recent results [Phys. Rev. B 70, 235314 (2004)] showing the dispersion relations of single-particle and collective excitations in quantum wires in the presence of the Rashba spin-orbit interaction (SOI). We claim that those calculations performed in the absence of SOI, and used as a strong reference to the interacting case, are unlikely to be correct. We show the correct omega-q plane of the system in the absence of Rashba SOI.2engEditorial10.1103/PhysRevB.72.207302WOS:000233603900139Acesso restritoWOS000233603900139.pdf