European Migration Network: immigration of international students to the EU: empirical evidence and current policy practice

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Chiral boson on a circle revisited

It is a well known result that the scalar field spectrum is composed of two chiral particles (Floreanini-Jackiw particles) of opposite chiralities. Also, that a Siegel particle spectrum is formed by a nonmover field (a Hull's noton) and a FJ particle. We show here that, in fact, the spectrum of the chiral boson on a circle has a particle not present in its currently well known spectrum.Comment: 11 pages, Latex. Final version to appear in Braz. J. Phy