English

Flow Equations In Arbitrary Signature

High Energy Physics - Theory 2022-04-27 v1 General Relativity and Quantum Cosmology

Abstract

We discuss general bosonic configurations of four-dimensional N=2 supergravity coupled to vector multiplets in (t,s) space-time. The supergravity theories with Euclidean and neutral signature are described by the so-called para-special K\"ahler geometry. For extremal solutions, we derive in a unified fashion, using the equations of motion, the flow equations for all space-time signatures. Demanding that the solutions with neutral and Euclidean signatures admit unbroken supersymmetry, we derive the constraints, known as the stabilisation equations, on the para-covariantly holomorphic sections expressed in terms of the adapted coordinates. The stabilisation equations expressed in terms of the para-complex sections imply generalised flow equations in terms of para-complex central charge. For Euclidean and neutral signature, it is demonstrated that solutions for either signs of gauge kinetic terms are mapped into each other via field redefinitions.

Keywords

Cite

@article{arxiv.2111.05141,
  title  = {Flow Equations In Arbitrary Signature},
  author = {W. A. Sabra},
  journal= {arXiv preprint arXiv:2111.05141},
  year   = {2022}
}

Comments

15 pages

R2 v1 2026-06-24T07:32:17.322Z