Digvijay Ghotane

An exactly solvable minisuperspace model with a proven observational-equivalence theorem, a complete signature classification, and an ultralight-relic test

We study an exactly solvable minisuperspace model class in which mass plays the role of the time variable, constructed from established elements: the Compton clock, the timelike character of the conformal factor in the DeWitt supermetric, and relational (Page–Wootters) time. The...