Journal
COMMUNICATIONS IN THEORETICAL PHYSICS
Volume 69, Issue 1, Pages 37-42Publisher
IOP Publishing Ltd
DOI: 10.1088/0253-6102/69/1/37
Keywords
gravitational waves; atomic Sagnac interferometer; space-borne detector
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Funding
- National Key Research Program of China [2016YFA0302002]
- National Science Foundation of China [11227803, 91536221]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB21010100]
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We propose a space-borne gravitational-wave detection scheme, called atom interferometric gravitational-wave space observatory (AIGSO). It is motivated by the progress in the atomic matter-wave interferometry, which solely utilizes the standing light waves to split, deflect and recombine the atomic beam. Our scheme consists of three drag-free satellites orbiting the Earth. The phase shift of AIGSO is dominated by the Sagnac effect of gravitational-waves, which is proportional to the area enclosed by the atom interferometer, the frequency and amplitude of gravitational-waves. The scheme has a strain sensitivity < 10(-20) /root Hz in the 100 mHz-10 Hz frequency range, which fills in the detection gap between space-based and ground-based laser interferometric detectors. Thus, our proposed AIGSO can be a good complementary detection scheme to the space-borne laser interferometric schemes, such as LISA. Considering the current status of relevant technology readiness, we expect our AIGSO to be a promising candidate for the future space-based gravitational-wave detection plan.
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