Speaker
Dr
David Kubiznak
(Perimeter Institute)
Description
We comment on the recently introduced Gauss-Bonnet gravity in four dimensions. We argue that although the naive D->4 limit of the Gauss-Bonnet gravity does not work, a well-defined theory is obtained by generalizing a conformal trick employed by Mann and Ross to obtain a limit of the Einstein gravity in D=2 dimensions. This yields a scalar-tensor theory of the Horndeski type that can also be obtained by dimensional reduction methods. Some properties and solutions of this theory in four and three dimensions will be discussed.
Primary authors
Dr
Robie Hennigar
(Memorial University of Newfoundland)
Dr
David Kubiznak
(Perimeter Institute)
Prof.
Robert Mann
(University of Waterloo)
Mr
Christopher Pollack
(University of Waterloo)
