Curious variant of the Bronnikov-Ellis spacetime

نویسندگان

چکیده

We explore a curious but simple variant of the Bronnikov-Ellis wormhole spacetime with specific ``red-shift function'' (i.e. ${g}_{00}$) in line element. The matter required to support such geometry violates local null energy condition (NEC) only around throat and global averaged NEC integral along radial geodesics may be adjusted arbitrarily small negative values, using metric parameters. Properties element manifest functions, curvature stress are delineated. Further, exact timelike found generic features periodic/nonperiodic motion (closed, bounded or open) presented. Scalar wave propagation is also solved analytically, thereby providing partial check on stability under scalar perturbations. Interestingly, we note that this viewed as four dimensional, section five static, nonvacuum, Witten bubblelike which, an extra dimension, has threaded by satisfying NEC.

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ژورنال

عنوان ژورنال: Physical review

سال: 2022

ISSN: ['0556-2813', '1538-4497', '1089-490X']

DOI: https://doi.org/10.1103/physrevd.105.024013