{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"0ea84443cb0fff207e1778c81fc12d6aa136682c53874de769ff499f81ffd074","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":["ai:gpt-5.5"],"kind":"seed"},"parents":["977a1c6d5a2e6853d1905f335ea49bc6ce0fb1ef9a78ff841adc86ac54266274","ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b"],"salt":"8781cecde24db1318bae9484083439f9b64cb8f319143e7c54f3d90e92cbbfcb","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"yes-no","assisted_by":["ai:gpt-5.5"],"external_id":"cm.skyrmion-magnets.quantum-skyrmions","kind":"well-posed","literature_status":"open","n":"2","parents":[],"plain":"When a skyrmion is only a few atoms wide and made of small spins, quantum mechanics should matter, letting it tunnel or form superpositions. No experiment has yet shown a skyrmion behaving quantum mechanically.","posed_since":"","precise":"In a frustrated or chiral magnet with $S=1/2\\ \\text{or}\\ 1$ local moments and skyrmion radius of a few lattice spacings, detect a quantum signature: macroscopic quantum tunneling of skyrmion number or position (a temperature-independent switching rate below a crossover $T*$), or quantized internal modes inconsistent with classical spin dynamics. An answer is an identified system and measurement giving $T*$ and the rate.","problem_ref":"977a1c6d5a2e6853d1905f335ea49bc6ce0fb1ef9a78ff841adc86ac54266274","references":"","settled_by":"Low-temperature single-skyrmion switching or spectroscopy showing a temperature-independent rate below $T*$, compared with quantum many-body calculations.","status_note":"","title":"Can quantum skyrmions be observed in a real magnet?","topic_ref":null},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"bacc64a7291bf249a3400afb985202c15ed3f40684ce752ae638c2e6d6519a19","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"011dc22217e01150cea4a9d507ba35bddd3e2f79e742ed47c29622799e7b4f92","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"QvpeU1HBFpP7gQ5wkvJSLkyy51c8xo7s8cb8-ov4P-m797nVSWo0034MborQimw_dvz1zzc5de2_CSdFHjn4AA"},"schema":"pubphys.envelope/1"},"record_hash":"bacc64a7291bf249a3400afb985202c15ed3f40684ce752ae638c2e6d6519a19","leaf_index":3038}