Discontinuity of the percolation density at the critical point

Determine whether the percolation density of the weight-dependent random connection model on the real line jumps discontinuously at its critical parameter \(\beta_c\).

Background

For one-dimensional independent long-range percolation at the critical decay, the percolation density is known to jump at the threshold. The paper asks whether an analogous discontinuity holds for the dependent weight-dependent random connection model studied here.

The numerical study suggests a jump of height close to $0.9$, but no proof is given.

References

At the critical exponent the percolation density jumps at the threshold ; we do not know whether it does so at $\beta_c$ here.

Rainbow percolation  (2608.12954 - Gracar et al., 13 Aug 2026) in Remark 2.1(v), Section 1 (Comparison with classical long-range percolation)