A High-Time Resolution Search for Compact Objects using Fast Radio Burst Gravitational Lens Interferometry with CHIME/FRB

Understand

The gravitational field of compact objects, such as primordial black holes, can create multiple images of background sources.

• For transients such as fast radio bursts (FRBs), these multiple images can be resolved in the time domain.
• Under certain circumstances, these images not only have similar burst morphologies but are also phase-coherent at the electric field level.
• With a novel dechannelization algorithm and a matched filtering technique, we search for repeated copies of the same electric field waveform in observations of FRBs detected by the FRB backend of the Canadian Hydrogen Mapping Intensity Experiment (CHIME).