Gravitational field of scalar lumps in higher-derivative gravity
نویسندگان
چکیده
We study the gravitational field sourced by localized scalar fields (lumps) in higher-derivative theories of gravity. By working a static and spherically symmetric configuration, we find linearized spacetime metrics generated lumps for several Lagrangians: vanishing potential, i.e., free massive field, polynomial tachyon potential open string theory. perform analysis different gravity: Einstein's general relativity, four-derivative gravity, ghost-free nonlocal discuss limit validity our comment on possible future applications context astrophysical compact objects.
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.103.124068