Can atom interferometers detect dark matter through quantum decoherence?

Matter-wave interferometers—devices that split atoms into two paths and recombine them—can sense dark matter through quantum decoherence effects rather than just energy kicks. The researchers show that decoherence signals get quantum boosts (Bose enhancement or Pauli blocking) depending on the dark matter type, while phase shifts remain linear. This framework handles dark matter masses from light to heavy and captures quantum effects experiments actually experience.