([appendix [\[sec:color-algebra\]]{}]{}). Most of this can be found in various different references, but we think it is valuable to have the relevant issues collected here. Furthermore, we have collected some of the more technical points in our implementation and in the tuning procedure in [appendices [\[sec:deta-descr-rope\]]{}]{} and [\[sec:tuning\]]{} respectively. Although these are important for our results, they tend to hamper the readability of the main text, and are therefore presented separately.

String fragmentation {#sec:stringfragmentation}
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In this section we will discuss the fragmentation of a single string. We first discuss the basic tunneling process, then the space-time picture describing how the produced quarks and antiquarks combine to hadrons, followed by a discussion of baryon production and spin effects. We end by a discussion of the effects of a modified effective string tension.

Tunneling {#sec:lundstring}
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A linear colour electric field stretched between a quark and an antiquark, moving in opposite directions, can break up by the production of new $q\bar{q}$ pairs, in a way similar to the production of $e^+e^-$ pairs in a homogenous electric field. As discussed by Schwinger [@Schwinger:1951nm] the electric field is unstable, and the decay can be interpreted as the result of the production of new 