Janus and RG-flow interfaces from matter-coupled F(4) gauged supergravity

We study supersymmetric Janus solutions from matter-coupled $F(4)$ gauged supergravity coupled to three vector multiplets and SO(4)~ SO(3)× SO(3) gauge group. There are two supersymmetric AdS₆ vacua preserving all supersymmetries with SO(3)× SO(3) and SO(3)diag symmetries dual to $N=2$ SCFTs in five dimensions. We consider a truncation to SO(2)diag⊂ SO(3)diag singlet scalars and find a number of new supersymmetric Janus solutions preserving eight supercharges. These solutions holographically describe conformal interfaces within $N=2$ five-dimensional SCFTs involving deformations by source terms and vacuum expectation values of relevant and irrelevant operators. Apart from the Janus solutions interpolating between SO(3)× SO(3) AdS₆ vacua, some of the solutions have SO(3)diag AdS₆ vacua generated by holographic RG flows from the SO(3)× SO(3) phases on both sides. We also give an evidence for solutions describing RG-flow interfaces with SO(3)× SO(3) AdS₆ vacuum on one side and SO(3)diag AdS₆ vacuum on the other side. The solutions provide first examples of Janus solutions involving more than one AdS₆ vacuum in six-dimensional gauged supergravity.