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Wormhole with varying cosmological constant |
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| Authors: | F. Rahaman M. Kalam M. Sarker A. Ghosh B. Raychaudhuri |
| Affiliation: | (1) Department of Mathematics, Jadavpur University, Kolkata, 700 032, India;(2) Department of Physics, Netaji Nagar College for Women, Regent Estate, Kolkata, 700092, India;(3) Department of Physics, Surya Sen Mahavidyalaya, Siliguri, West Bengal, India |
| Abstract: | 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 Λ to be a space variable scalar, viz., Λ = Λ (r) . It is shown that the averaged null energy condition (ANEC) violating exotic matter can be made arbitrarily small. |
| Keywords: | Wormholes Variable cosmological constant Anisotropic source |
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