Category: Physics

Summary: Testing whether offset stripe patterns in infection and recovery rates create a nonmonotone coexistence window near the active-absorbing threshold.

Spatial heterogeneity can either open infection corridors or frustrate them, depending on how favorable and unfavorable regions overlap. This experiment asks whether phase-shifted stripe fields in the infection and recovery rates of a two-dimensional contact process create an intermediate offset that supports activity better than either perfect alignment or maximal mismatch.

The GPU study varies the phase offset between the two stripe fields near the absorbing-state transition and measures whether connected active corridors survive. The central idea is that moderate offset may preserve transport without creating the fully locked geometry of zero offset.

That makes the result an interaction study of structured heterogeneity, not just a disorder-strength sweep. It targets whether patterned rate fields can generate a coexistence window that ordinary random disorder would not reveal.

Method: GPU batched contact-process simulations sweeping the phase offset between infection and recovery stripe fields near the active-absorbing threshold.

What is measured: Activity or survival near threshold, coexistence-window width, corridor connectivity, dependence on phase offset, and comparison with aligned or mismatched stripes.