Abstract
We derive the magic square of Freudenthal, Rozenfeld, and Tits from the geometry of a special class of N=2 Maxwell-Einstein supergravity theories. We also show that all of these theories are obtainable by truncation of N=8 supergravity theories in various spacetime dimensions d, except for an "exceptional" subclass, unique for a given d, which is associated with with the exceptional Jordan algebra of 3 × 3 hermitian octonionic matrices.
Original language | English (US) |
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Pages (from-to) | 72-76 |
Number of pages | 5 |
Journal | Physics Letters B |
Volume | 133 |
Issue number | 1-2 |
DOIs | |
State | Published - Dec 8 1983 |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics