Spinors on a manifold are introduced without any metric background fixing. A classical field theory is built to describe interaction with gauge and gravity in the framework of variational calculus on (gauge-natural) bundles. Gravity is here described by new variables called spin-frames.
Why metrics? Is the metric the most fundamental description for gravity?
FATIBENE, Lorenzo;FERRARIS, Marco;FRANCAVIGLIA, Mauro
1997-01-01
Abstract
Spinors on a manifold are introduced without any metric background fixing. A classical field theory is built to describe interaction with gauge and gravity in the framework of variational calculus on (gauge-natural) bundles. Gravity is here described by new variables called spin-frames.
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