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arXiv · 2603.08410

Signature Change in $f(R, T_\phi)$ Theory

Serkan Doruk Hazinedar·Yaghoub Heydarzade
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Abstract

We investigate a simple $f(R, T_\phi)$ gravity model coupled to a scalar field and demonstrate that the theory admits classical degenerate metric solutions, analogous to those known in general relativity. In particular, we identify a class of solutions that exhibits a smooth transition from a Euclidean to a Lorentzian domain, thus yielding a classical dynamical realization of signature change.

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Serkan Doruk Hazinedar, Yaghoub Heydarzade. 2026-03-09. Signature Change in $f(R, T_\phi)$ Theory. https://doi.org/10.1088/1742-6596%2F3264%2F1%2F012007

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