Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2006-11-25
Gen.Rel.Grav.39:145-151,2007
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
8 pages, 2 figures, Accepted in Gen. Rel. Grav
Scientific paper
10.1007/s10714-006-0380-4
It has been suggested that the cosmological constant is a variable dynamical quantity. A class of solution has been presented for the spherically symmetric space time describing wormholes by assuming the erstwhile cosmological constant $\Lambda$ to be a space variable scalar, viz., $\Lambda$ = $\Lambda (r) $ . It is shown that the Averaged Null Energy Condition (ANEC) violating exotic matter can be made arbitrarily small.
Ghosh Arpita
Kalam Mehedi
Rahaman Farook
Raychaudhuri Biplab
Sarker M.
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