Testing Quantum Coherence Reconstructibility in Mesoscopic Systems

This work proposes an operational framework to test whether quantum coherence remains fully reconstructible under controlled experimental conditions. The approach is based on monitoring coherence under systematic variations of a controllable parameter, while maintaining well-characterized environmental decoherence. Any deviation from expected behavior is captured as an effective residual contribution. A minimal parametrization is introduced to explore different experimental regimes and identify possible limitations to reconstructibility. Two generic classes of signatures are considered: continuous residual contributions leading to an irreducible floor, and threshold-like behaviors associated with regime transitions. The framework provides a clear and testable strategy for probing potential limits to quantum coherence reconstructibility in mesoscopic systems.