Bosonization of QCD at high density

We describe the color-flavor locking (CFL) color superconductor in terms of bosonic variables, where the gaped quarks are realized as solitons, so-cal led superqualitons. We then show that the ground state of the CFL color sup erconductor is a e-matter, which is the lowest energy state for a given axe d baryon number. From this e-matter, we calculate the minimal energy to cre ate a superqualiton and argue that it is twice of the Cooper gap. Upon quan tizing the zero modes of superqualitons, we find superqualitons have the sa me quantum number as the gaped quarks and furthermore all the high spin sta tes of superqualitons are absent in the effective bosonic description of th e CFL color superconductor. (C) 2001 Published by Elsevier Science B.V.