{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"812cb026fe6c9bf6202951a4997e5fd1a8d8c056e3496a57227caeee23a382e9","created":"2026-10-03T07:17:50Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"bda3ada14a88ce67f3295628407d9b5cc82a68db215dd8f0dc1eb98713928a47","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"amo.ultralight-dm-fifth-forces","field":"amo","n":"1","review_cite":"D. Antypas et al., New Horizons: Scalar and Vector Ultralight Dark Matter, arXiv (Snowmass 2021 white paper), 2022","review_link":"https://arxiv.org/abs/2203.14915","review_verified":"true","summary":"If dark matter is made of extremely light particles, it behaves like a wave that makes the constants of nature or atomic spins wobble slightly, which clocks and magnetometers can detect. The same instruments look for new forces between electrons, protons and neutrons.","title":"Ultralight dark matter and fifth forces with atomic sensors","topic_ref":null,"why":"Atomic sensors are the only probes of dark matter much lighter than 1e-10 eV and of new bosons coupling weakly to ordinary matter."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"65dd591d9a6aea57b124c4aa9efd99b0deceb1c7733b697b5b72544d315d1ba0","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"9feae6e8f8801b27edf56842badd92dbb00f7daec4d59487d8ba561dd6241ad8","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"HLJUrxniVexLz55F_lvUzS1w_Kx-WuqN47kuFJYY24P1SCCjV-_5LXTbTJ0woNwQAJOhh_frqLMoE675H_bsAQ"},"schema":"pubphys.envelope/1"},"record_hash":"65dd591d9a6aea57b124c4aa9efd99b0deceb1c7733b697b5b72544d315d1ba0","leaf_index":26}