Triggered superradiance and fast radio bursts

Abstract

In this paper we develop a model for fast radio bursts (FRBs) based on triggered superradiance (SR) and apply it to previously published data of FRB 110220 and FRB 121102. We show how a young pulsar located at ~100 pc or more from an SR/FRB system could initiate the onset of a powerful burst of radiation detectable over cosmological distances. Our models using the OH${}^2{\Pi }_{3/2}$ $\left(J=3/2\right)$ 1612 MHz and ${}^2{\Pi }_{3/2}$ $\left(J=5/2\right)$ 6030 MHz spectral lines match the light curves well and suggest the entanglement of more than $10^{30}$ initially inverted molecules over lengths of approximately 300 au for a single SR sample. SR also accounts for the observed temporal narrowing of FRB pulses with increasing frequency for FRB 121102, and predicts a scaling of the FRB spectral bandwidth with the frequency of observation, which we found to be consistent with the existing data.

arXiv comment9 pages, 5 figures, accepted MNRAS

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• The FRB 20121102A November rain in 2018 observed with the Arecibo Telescope
• Commensal discovery of four Fast Radio Bursts during Parkes Pulsar Timing Array observations
• A simple relationship for the spectro-temporal structure of bursts from FRB 121102
• Evidence of a shared spectro-temporal law between sources of repeating fast radio bursts
• New evidence for Dicke's superradiance in the 6.7 GHz methanol spectral line in the interstellar medium
• Superradiance in massive vector fields with spatially varying mass
• A broad survey of spectro-temporal properties from FRB 20121102A
• Astronomical masers and Dicke's superradiance
• Spectral-temporal features of repeating ( one-off ) FRBs and Axion Star
• Generalisation of the Menegozzi & Lamb Maser Algorithm to the Transient Superradiance Regime
• Superradiance from a Relativistic Source
• Spectro-temporal analysis of ultra-fast radio bursts using per-channel arrival times
• A Unified Maxwell-Bloch Framework for Multi-periodic 6.7 GHz Methanol Flaring in G9.62+0.20E
• Relativistic Maxwell-Bloch Equations with Applications to Astrophysics