nLab
gravitino

Idea

In quantum field theory the term gravitino refers to the superpartner of the graviton.

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

$$(E,\Omega ,Spi):TX\to \mathrm{𝔰𝔦𝔰𝔬}(d,1)$$(E, \Omega, \Spi) : T X \to \mathfrak{siso}(d,1)

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

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

Related concepts

• boson

  • gauge boson

    • photon, gluon, graviton

• fermion

  • electron, quark,

  • gravitino, gaugino , dilatino?