Research Project: Scalar Fields in Strong Gravity
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Contributors
Funders
ID
TB.00284
Authors
Ramazanoğlu, Fethi Mübin
Faculty Member
Publications
Spontaneous growth of vector fields gravity
(American Physical Society (APS), 2017) Ramazanoğlu, Fethi Mübin; Department of Physics; Yes; College of Sciences
We show that the spontaneous scalarization scenario in scalar-tensor theories is a specific case of a more general phenomenon. The key fact is that the instability causing the spontaneous growth in scalars is due to the nonminimal coupling in the theory, and not related to the nature of the scalar. Another field with the same form of coupling undergoes spontaneous growth as well. We explicitly demonstrate this idea for vectors, naming it "spontaneous vectorization", and study spherically symmetric neutron stars in such a theory. We also comment on other tensor fields the idea can be applied, naming the general mechanism "spontaneous tensorization."
