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We present three different models for describing fractional topological superconductors. In the simplest model, we study an imbalanced Fermi gas subject to a pairing potential. We tune parameters such that the superconducting band becomes as flat as possible. Due to the flatness of the band structure and the imbalance between spin-up an spin-down electrons, the system becomes strongly correlated. Adding interaction leads to a non-trivial ground-state with degenerate ground-state at special filling fractions of excess spinful excitations. In the second model, we start from a fractional topological insulators in which we induce pairing by putting it on top of an s-wave superconducting substrate. The third model is at a flat band fractional Chern insulator or a conventional fractional quantum Hall ferro-magnet whose quasi-particles are paired up in the proximity of an s-wave superconductor. We argue that the first two models exhibit Abelian anyons as their fractional excitations and have a non-trivial topological order. More interestingly, using several different approaches, we show that the third model leads to a non-Abelian fractional topological superconductor whose edge state is a fractionalized Majorana fermions. Additionally, the low energy excitations around vortices in the bulk are fractionalized Majorana zero modes with $d=\sqrt{2m}$ quantum dimension in $\nu=1/m$ filling fraction. A wave-function for the fractional topological superconductors of the third type has been proposed. Finally, we discuss the connection between the third model and the $\mathbb{Z}_N$ rotor model which has been shown to give non-Abelian anyons with quantum dimension $d=\sqrt{N}$.
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