Dual symmetry and the vacuum energy
V. I. Tkach, J. Socorro, J. J. Rosales, J. A. Nieto
Abstract
In this work we present a new hidden symmetry in gravity for the scale factor in the FRW model, for k=0. This exact symmetry vanishes the cosmological constant. We interpret this hidden symmetry as a dual symmetry in the sense that appears in the string theory.
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