Testing the Reconstructibility of Quantum Coherence in Mesoscopic Systems: An Experimental Framework Based on State Reconstruction

This work proposes an experimental test of the reconstructibility of quantum coherence in mesoscopic systems under controlled variations of an effective gravitational configuration. Rather than introducing modifications to quantum dynamics, the approach directly tests whether all observed decoherence effects can be fully accounted for by standard environmental mechanisms. The protocol relies on statistical state reconstruction and defines an operational observable as the deviation between measured and predicted covariance matrices. Levitated optomechanical systems are identified as a particularly suitable platform for implementing this test. This work provides a first-generation experimental probe of the OFID-G criterion, offering a direct test of the completeness of standard decoherence modeling. Project page (OFID framework and related works):https://alexsasfrance.github.io/OFID-framework/