Observer-Wake Interference in the Chrono-Medium: A Mechanism for Wavefunction Collapse in the Double-Slit Experiment

The measurement problem in quantum mechanics remains one of the most fundamental unresolved questions in physics. This paper proposes a physical mechanism for wavefunction collapse based on interference within a chrono-medium: a dynamic substrate that carries memory of prior interactions.

In this framework, particles are modeled as sources of dynamical wakes that propagate through the chrono-medium. The double-slit interference pattern is shown to emerge from self-interference of a single particle's wake. When an observer or which-path detector is introduced, it sources an independent wake. The superposition of the particle wake and observer wake results in destructive interference, leading to the observed loss of interference fringes.

We further propose that retrograde observer wakes can reconstruct interference patterns under specific conditions, offering a physical mechanism for apparent retrocausality without violating relativistic causality. This model provides a substrate-based interpretation of quantum measurement and suggests new experimental tests within double-slit and delayed-choice configurations.