Gravitational Collider Physics via Pulsar-Black Hole Binaries II: Fine and Hyperfine Structures are Favored

Abstract

A rotating black hole can be clouded by light bosons via superradiance, and thus acquire an atom-like structure. If such a gravitational atom system is companioned with a pulsar, the pulsar can trigger transitions between energy levels of the gravitational atom, and these transitions can be detected by pulsar timing. We show that in such pulsar-black hole systems, fine and hyperfine structure transitions are more likely to be probed than the Bohr transition. Also, the calculation of these fine and hyperfine structure transitions are under better analytic control. Thus, these fine and hyperfine structure transitions are more ideal probes in the search for gravitational collider signals in pulsar-black hole systems.

9 pages, 4 figures; v2: references added

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Cited by in corpus (9)

• Ionization of Gravitational Atoms
• The Science of the Einstein Telescope
• Termination of Superradiance from a Binary Companion
• Evolution of binary systems accompanying axion clouds in extreme mass ratio inspirals
• Improved Analytic Solution of Black Hole Superradiance
• Signatures of Ultralight Bosons in Compact Binary Inspiral and Outspiral
• On the Neutron Star/Black Hole Mass Gap and Black Hole Searches
• Probing vector gravitational atoms with eccentric intermediate mass-ratio inspirals
• Local Group Velocity Distribution inside Superradiant Condensates