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Could Spin-Charge Separation be the Source of Confinement?
Yang-Mills gauge field with gauge group SU(2) decomposes into a single charge
neutral complex vector, and two spinless charged scalar fields. At high
energies these constituents are tightly confined into each other by a compact
U(1) interaction, and the Yang-Mills Lagrangian describes the dynamics of
asymptotically free massless gauge vectors. But in a low energy and finite
density environment the interaction between the constituents can become weak,
and a spin-charge separation may occur. We suggest that the separation between
the spin and charge with the ensuing condensation of the charged scalars takes
place when the Yang-Mills theory enters confinement. The confining phase
becomes then surprisingly similar to the superconducting phase of a high-
superconductor.Comment: Talk presented at QCD@Work 2005 (Conversano
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