Problems and aspects of energy-driven wave-function collapse models (15 pages)

M. A. B. Whitaker

Philip Pearle

Four problematic circumstances are considered, involving models which describe dynamical wave-function collapse toward energy eigenstates, for which it is shown that wave-function collapse of macroscopic objects does not work properly. In one case, a common particle position measuring situation, the apparatus evolves to a superposition of macroscopically distinguishable states (does not collapse to one of them as it should) because each such particle∕apparatus∕environment state has precisely the same energy spectrum. Second, assuming an experiment takes place involving collapse to one of two possible outcomes which is permanently recorded, it is shown in general that this can only happen in the unlikely case that the two apparatus states corresponding to the two outcomes have disjoint energy spectra. Next, the progressive narrowing of the energy spectrum due to the collapse mechanism is considered. This has the effect of broadening the time evolution of objects as the universe evolves. Two examples, one involving a precessing spin, the other involving creation of an excited state followed by its decay, are presented in the form of paradoxes. In both examples, the microscopic behavior predicted by standard quantum theory is significantly altered under energy-driven collapse, but this alteration is not observed by an apparatus when it is included in the quantum description. The resolution involves recognition that the state vector describing the apparatus does not collapse, but evolves to a superposition of macroscopically different states.

Fay Dowker B, Isabelle Herbauts

Shan Gao

Energy non-conservation is a serious problem of dynamical collapse theories. In this paper, we propose a discrete model of energy-conserved wave function collapse. It is shown that the model is consistent with existing experiments and our macroscopic experience.

David Z. Albert, Lev Vaidman A

Michael I Aksman

The physical mechanism underlying quantum wave-function collapse remains a central problem in foundational physics. Objective collapse theories, notably the Penrose-Diósi (DP) model,propose that macroscopic superposition is destroyed by gravitational self-energy (∆EG), predicting that collapse scales strictly with mass.We propose an entirely distinct physical mechanism: Topological Representation Collapse.Within the Deterministic Spectral Manifold (DSM-861) framework, wave-function collapse istriggered not by static gravity, but by dynamic enstrophy strain exceeding a specific topologicalmelting threshold (Em ≈ 695.74 eV). This establishes a falsifiable experimental demarcationline in the mesoscopic regime. We demonstrate that highly strained, rapidly rotating, or topologically complex mesoscopic systems (such as driven nanomechanical rotors or rapidly foldingproteins) will undergo spontaneous decoherence significantly faster than predicted by gravityinduced models, while perfectly rigid macroscopic masses may maintain coherence longer.