nLab
gravitino

Contents

Context

Gravity

Physics

physics, mathematical physics, philosophy of physics

Surveys, textbooks and lecture notes


theory (physics), model (physics)

experiment, measurement, computable physics

Super-Geometry

Fields and quanta

Contents

Idea

In quantum field theory the term gravitino refers to the superpartner of the graviton, a Rarita-Schwinger field of spin 3/23/2 that appears in supergravity.

In supergravity a field configuration is a connection locally given by a Lie algebra-valued form

(E,Ω,Spi):TX𝔰𝔦𝔰𝔬(d,1) (E, \Omega, \Spi) : T X \to \mathfrak{siso}(d,1)

on spacetime with values in the super Poincare Lie algebra. Its components Ψ\Psi in the spin group representation Γ𝔰𝔦𝔰𝔬(d)\Gamma \subset \mathfrak{siso}(d) is the gravitino field.

The name derives from the fact that the other two comonents are identified in gravity with the graviton field.

References

General

See also

As a dark matter candidate

Discussion of the gravitiono as a dark matter candidate:

A proposal for super-heavy gravitinos as dark matter, by embedding D=4 N=8 supergravity into E10-U-duality-invariant M-theory:

following the proposal towards the end of

  • Murray Gell-Mann, introductory talk at Shelter Island II, 1983 (pdf)

    in: Shelter Island II: Proceedings of the 1983 Shelter Island Conference on Quantum Field Theory and the Fundamental Problems of Physics. MIT Press. pp. 301–343. ISBN 0-262-10031-2.

Last revised on August 22, 2019 at 04:17:43. See the history of this page for a list of all contributions to it.