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Numerical Relativity of Spontaneous Scalarization

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Spontaneous scalarization is a scenario in some scalar-tensor theories of gravity where non-perturbative (order-of-unity strength) scalar fields can develop near neutron stars. I will explain the basics of spontaneous scalarization and how we evolve spacetimes in this theory using numerical relativity techniques. I will describe the scalar-tensor theory parameter space that allows large deviations from GR, and speculate on some merger cases where the gravitational signal can be analyzed to identify such deviations.

This talk is part of the DAMTP Friday GR Seminar series.

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