Superposition of Weyl solutions to the Einstein equations - Cosmic strings and domain walls

Details Superposition of Weyl solutions to the Einstein equations - Cosmic strings and domain walls Superposition of Weyl solutions to the Einstein equations - Cosmic strings and domain walls

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988cqgra...5l..47l&link_type=abstract

Classical and Quantum Gravity (ISSN 0264-9381), vol. 5, Feb. 1, 1988, p. L47-L51. CNPq-supported research.

Mathematics

13

Chaos, Cosmology, Domain Wall, Einstein Equations, String Theory, Superposition (Mathematics), Gravitational Effects, Scalars, Singularity (Mathematics)

Scientific paper

The solutions to the Einstein equations representing the superposition of a particle and a ring are studied. The appearance of strut-type and membrane-type singularities is analyzed. These objects are compared with cosmic strings and domain walls. It is found that, unlike the usual domain walls, the membranes have null effective gravitational mass, as have struts and strings. The relationship of these membranes with walls associated with sigma-model-type field theories is indicated.

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