3 papers
gr-qc2025
Theoretical filters for shift-symmetric Horndeski gravities
Athanasios Bakopoulos, Christos Charmousis, Nikos Chatzifotis +1
We investigate the structure of nontrivial maximally symmetric vacua and compact-object solutions in shift-symmetric scalar-tensor theories. Focusing on Horndeski gravity, we deriv…
gr-qc2025
On the uplift of 4D wormholes in Braneworld models and their 5D structure
Thomas D. Pappas, Theodoros Nakas
Recent developments for the consistent embedding of general 4D static and spherically-symmetric spacetimes in arbitrary single-brane braneworld models in the form of the General Em…
gr-qc2025
Smarr formula for black holes with primary and secondary scalar hair
Yun Soo Myung, Theodoros Nakas
In this work, we revisit the thermodynamics of black holes endowed with primary and secondary scalar hair in the shift and symmetric subclass of beyond Horndeski gravit…