An Effective Model of Spatially Correlated Decoherence in Entangled Quantum Systems

This work presents an effective open-quantum-systems model for decoherence in multipartite entangled states subject to spatially correlated environmental noise. Without assuming a specific microscopic mechanism, the model characterizes collective decoherence through correlated noise terms and examines their impact on entanglement stability and decay rates. The approach is phenomenological and compatible with standard quantum dynamical frameworks, providing testable scaling behavior relevant to quantum information and foundational studies.