https://doi.org/10.1140/epjc/s10052-021-09324-0
Regular Article - Theoretical Physics
Holographic RG flows and Janus solutions from matter-coupled 
gauged supergravity
String Theory and Supergravity Group, Department of Physics, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, 10330, Bangkok, Thailand
Received:
27
February
2021
Accepted:
7
June
2021
Published online:
19
June
2021
We study an 
truncation of four-dimensional gauged supergravity coupled to six vector multiplets with 
gauge group and find a new class of holographic RG flows and supersymmetric Janus solutions. In this truncation, there is a unique supersymmetric 
vacuum dual to an SCFT in three dimensions. In the presence of the axion, the RG flows generally preserve 
supersymmetry while the supersymmetry is enhanced to for vanishing axion. We find solutions interpolating between the vacuum and singular geometries with different residual symmetries. We also show that all the singularities are physically acceptable within the framework of four-dimensional gauged supergravity. Accordingly, the solutions are holographically dual to RG flows from the SCFT to a number of non-conformal phases in the IR. We also find and Janus solutions with and 
symmetries, respectively. The former is obtained from a truncation of all scalars from vector multiplets and can be regarded as a solution of pure gauged supergravity. On the other hand, the latter is a genuine solution of the full matter-coupled theory. These solutions describe conformal interfaces in the SCFT with 
and 
supersymmetries.
© The Author(s) 2021
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Funded by SCOAP3
