Crucially, these monopoles are deconfined they can separate and move essentially independently. oAs the two monopoles of opposite sign separate, they leave a tensionless string of reversed spins connecting them. ---Dirac strings“Crucially, these monopoles are deconfined , they can separate and move essentially independently.”  “As the two monopoles of opposite sign separate, they leave a tensionless string of reversed spins connecting them.”---Dirac Strings