Dual Meissner effect and string tension in SU(2) lattice gauge theory

We study the distribution of the color fields due to a static quark-antiquark pair in SU(2) lattice gauge theory. We find that the London penetration length measured after Abelian projection in the Abelian Covariant gauge (Maximal Abelian gauge) agrees with the one obtained without gauge fixing. We put out a simple relation between the penetration length and the string tension.