Extra time-like dimensions lead to a vanishing cosmological constant

Details Extra time-like dimensions lead to a vanishing cosmological constant Extra time-like dimensions lead to a vanishing cosmological constant

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phlb..177..357a&link_type=abstract

Physics Letters B, Volume 177, Issue 3-4, p. 357-360.

Physics

20

Scientific paper

Allowing extra time-like dimensions, the cosmological constant problem in Kaluza-Klein theories is examined. A new class of vacuum solutions is obtained for D=11 supergravity with a vanishing cosmological constant. In particular, there exists a solution with an SO(4)×U(1) gauge group, and without ghosts and tachyons in the low-energy limit of the effective four-dimensional theory.

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