https://doi.org/10.1140/epjc/s10052-025-14430-4
Regular Article - Theoretical Physics
A simple ghost free and caustic free mimetic scalar field dark matter model
Librairie BAH SARL, BP 104, Hall du Grand Hôte de Bamako-Mali, Bamako, Mali
Received:
2
December
2024
Accepted:
12
June
2025
Published online:
25
June
2025
Chamseddine and Mukhanov have promoted the concept of mimetic dark matter as alternative dark matter candidate coming from gravitation. Unfortunately, although being very interesting, their proposition turned out to have weaknesses among which ghost and caustic instabilities. In this paper, I propose among the simplest ghost-free and caustic-free scalar field dark matter extension of their model; a proposition capable of challenging 
CDM model or even capable of doing better.
© The Author(s) 2025
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