DOAJ Open Access 2025

Ghost-free, gauge invariant SVT generalizations of Horndeski theory

S. Mironov A. Shtennikova M. Valencia-Villegas

Abstrak

Abstract We analyze the generalizations of Kaluza–Klein compactifications of 5D Horndeski theory. They are Scalar–Vector–Tensor (SVT) theories with higher derivatives in the action, but with second order equations of motion. The vector field is invariant under a U(1) gauge transformation and the Scalar–Tensor sector corresponds to Horndeski theory. A subclass of these SVT theories is such that the Horndeski functions $$G_4(\pi ,X)$$ G 4 ( π , X ) and $$G_5(\pi )$$ G 5 ( π ) remain free, while the speed of the tensor and vector modes is exactly the same. We show a subclass where the vector sector retains freedom through new functions of $$\pi ,\, X$$ π , X while the speed of the vector modes still tracks the speed of the tensor modes.

Topik & Kata Kunci

Astrophysics Nuclear and particle physics. Atomic energy. Radioactivity

Penulis (3)

S. Mironov

A. Shtennikova

M. Valencia-Villegas

Format Sitasi

APA MLA BibTeX

Mironov, S., Shtennikova, A., Valencia-Villegas, M. (2025). Ghost-free, gauge invariant SVT generalizations of Horndeski theory. https://doi.org/10.1140/epjc/s10052-025-15125-6

Akses Cepat

PDF tidak tersedia langsung

Cek di sumber asli →

Lihat di Sumber doi.org/10.1140/epjc/s10052-025-15125-6

Informasi Jurnal

Tahun Terbit: 2025
Sumber Database: DOAJ
DOI: 10.1140/epjc/s10052-025-15125-6
Akses: Open Access ✓