2020/01/31 by Mengxu Liu, Biping Gong · 1 citation
Physics and Astronomy · #gr-qc #astro-ph.IM
paper · pdf · doi:10.1038/s41598-020-72850-6
published as Sci Rep 10, 16285 (2020) · 7 pages, 5 figures, published on Scientific Reports
arxiv created 2020/10/06 · arxiv updated 2020/10/07
The gravitational wave (GW) has opened a new window to the universe beyond the electromagnetic spectrum. Since 2015, dozens of GW events have been caught by the ground-based GW detectors through laser interferometry. However, all the ground-based detectors are L-shaped Michelson interferometers, with very limited directional response to GW. Here we propose a three-dimensional (3-D) laser interferometer detector in the shape of a regular triangular pyramid, which has more spherically symmetric antenna pattern. Moreover, the new configuration corresponds to much stronger constraints on parameters of GW sources, and is capable of constructing null-streams to get rid of the signal-like noise events. A 3-D detector of kilometer scale of such kind would shed new light on the joint search of GW and electromagnetic emission.