2 citations · 3 across the 8 of their papers we have counts for
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New constraints on modified gravity with dimension-six operators from gravitational waves
Justo López-Sarrión, Carlos M. Reyes, César Riquelme +1
The present article deals with gravitational-wave propagation affected by higher-derivative terms that break spacetime symmetries. Two dimension-6 contributions of the gravitationa…
Dipole ghosts and spontaneous symmetry breaking in higher-order Chern-Simons theory
Carlos M. Reyes, César Riquelme, Angel Sanchez
In this work, we investigate the emergence of dipole ghost structures in gauge theories at both the classical and quantum levels. Traditionally, dipole ghosts are introduced throug…
Geometric origin of the cosmological constant from Einstein-Chern-Simons gravity compactified to four dimensions
M. Cataldo, S. Lepe, C. Riquelme +1
We present a model in which the cosmological constant emerges as a purely geometric effect from the four-dimensional compactification of five-dimensional Einstein-Chern-Simons grav…
Gödel-symmetric backgrounds and explicit spacetime symmetry breaking
César Riquelme, Carlos M. Reyes, A. F. Santos
Explicit breaking of diffeomorphism symmetry with nondynamical background fields in gravitational theories can lead to inconsistencies between the equations of motion and the under…