Measuring the expansion rate of quarks, if such a concept were even meaningful in the context of quarks, would not directly prove or disprove the quantum multiverse theory. Let me explain why.
The quantum multiverse theory, also known as the many-worlds interpretation, is a speculative interpretation of quantum mechanics that suggests the existence of multiple parallel universes or "worlds" that coexist with our own. According to this interpretation, every quantum event results in the creation of multiple branching universes, each corresponding to a different outcome of that event.
The expansion rate of quarks, on the other hand, pertains to the behavior of quarks within the framework of particle physics and the study of the early universe. It describes the expansion of space on cosmological scales and is related to the concept of cosmic inflation. The expansion rate of quarks is not directly connected to the quantum multiverse theory.
The quantum multiverse theory is a theoretical proposal that arises from the interpretation of quantum mechanics at the level of particles and their wave functions. It deals with the probabilistic nature of quantum events and their potential branching into different outcomes. It is not concerned with the expansion rate of quarks or the dynamics of the early universe.
To prove or disprove the quantum multiverse theory, one would need to provide experimental evidence or develop theoretical frameworks that can validate or invalidate its predictions. This is an ongoing area of research in theoretical physics, but it is highly challenging to test directly due to the nature of the theory and the difficulty of observing or interacting with other parallel universes, if they exist.
In summary, measuring the expansion rate of quarks would not provide evidence for or against the quantum multiverse theory. These concepts belong to different domains of physics, and the quantum multiverse theory is not dependent on the expansion rate of quarks or the dynamics of the early universe.