Qun-Feng Chen

In-orbit test of the weak equivalence principle with atom interferometry

The weak equivalence principle (WEP) is a central pillar of general relativity. Its precise test with quantum systems in space offers a unique window onto new physics. Here, we report an in-orbit quantum test of the WEP. A dual-species ( 85 Rb/ 87 Rb) atom interferometer is reali...