All Outputs (4)

Spin-Induced Black Hole Spontaneous Scalarization (2020)
Journal Article
Dima, A., Barausse, E., Franchini, N., & Sotiriou, T. P. (2020). Spin-Induced Black Hole Spontaneous Scalarization. Physical Review Letters, 125(23), Article 231101. https://doi.org/10.1103/PhysRevLett.125.231101

We study scalar fields in a black hole background and show that, when the scalar is suitably coupled to curvature, rapid rotation can induce a tachyonic instability. This instability, which is the hallmark of spontaneous scalarization in the lineariz... Read More about Spin-Induced Black Hole Spontaneous Scalarization.

Detecting Scalar Fields with Extreme Mass Ratio Inspirals (2020)
Journal Article
Maselli, A., Franchini, N., Gualtieri, L., & Sotiriou, T. P. (2020). Detecting Scalar Fields with Extreme Mass Ratio Inspirals. Physical Review Letters, 125(14), Article 141101. https://doi.org/10.1103/PhysRevLett.125.141101

We study extreme mass ratio inspirals (EMRIs), during which a small body spirals into a supermassive black hole, in gravity theories with additional scalar fields. We first argue that no-hair theorems and the properties of known theories that manage... Read More about Detecting Scalar Fields with Extreme Mass Ratio Inspirals.

Prospects for fundamental physics with LISA (2020)
Journal Article
Barausse, E., Berti, E., Hertog, T., Hughes, S. A., Jetzer, P., Pani, P., …Zumalacarregui, M. (2020). Prospects for fundamental physics with LISA. General Relativity and Gravitation, 52(8), Article 81. https://doi.org/10.1007/s10714-020-02691-1

In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental physics. Given the very broad range of topics that might be relevant... Read More about Prospects for fundamental physics with LISA.

Onset of spontaneous scalarization in generalized scalar-tensor theories (2020)
Journal Article
Ventagli, G., Lehébel, A., & Sotiriou, T. P. (2020). Onset of spontaneous scalarization in generalized scalar-tensor theories. Physical Review D, 102(2), Article 024050. https://doi.org/10.1103/PhysRevD.102.024050

In gravity theories that exhibit spontaneous scalarization, astrophysical objects are identical to their general relativistic counterpart until they reach a certain threshold in compactness or curvature. Beyond this threshold, they acquire a nontrivi... Read More about Onset of spontaneous scalarization in generalized scalar-tensor theories.