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Colour superconductivity in finite systems

Paolo Amore·Michael C. Birse·Judith A. McGovern·Niels R. Walet
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Abstract

In this paper we study the effect of finite size on the two-flavour colour superconducting state. As well as restricting the quarks to a box, we project onto states of good baryon number and onto colour singlets, these being necessary restrictions on any observable ``quark nuggets''. We find that whereas finite size alone has a significant effect for very small boxes, with the superconducting state often being destroyed, the effect of projection is to restore it again. The infinite-volume limit is a good approximation even for quite small systems.

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Paolo Amore, Michael C. Birse, Judith A. McGovern, Niels R. Walet. 2001-10-19. Colour superconductivity in finite systems. https://doi.org/10.1103/physrevd.65.074005

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