11 research outputs found
An M-theory solution from null roots in E11
We find a purely gravitational classical solution of
M-theory/eleven-dimensional supergravity which corresponds to a solution of the
E10 brane sigma-model involving a null root. This solution is not
supersymmetric and is regularly embedded into E11.Comment: 10 page
A morphometrically based method for predicting water layer boundaries in meromictic lakes
Reductions of exceptional field theories
Double Field Theory (DFT) and Exceptional Field Theory (EFT), collectively called ExFTs, have proven to be a remarkably powerful new framework for string and M-theory. Exceptional field theories were constructed on a case by case basis as often each EFT has its own idiosyncrasies. Intuitively though, an En − 1(n − 1) EFT must be contained in an En(n) ExFT. In this paper we propose a generalised Kaluza-Klein ansatz to relate different ExFTs. We then discuss in more detail the different aspects of the relationship between various ExFTs including the coordinates, section condition and (pseudo)-Lagrangian densities. For the E8(8) EFT we describe a generalisation of the Mukhi-Papageorgakis mechanism to relate the d = 3 topological term in the E8(8) EFT to a Yang-Mills action in the E7(7) EFT