{"paper":{"title":"Tunneling chemical exchange reaction $\\textrm{D}+\\textrm{HD}\\rightarrow\\textrm{D}_{2}+\\textrm{H}$ in solid HD and D$_2$ at temperatures below 1$\\,$K","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"D. M. Lee, D. Zvezdov, J. Ahokas, J. J\\\"arvinen, L. Lehtonen, O. Vainio, S. Sheludiakov, S. Vasiliev, V. V. Khmelenko","submitted_at":"2015-09-18T11:09:10Z","abstract_excerpt":"We report on a study of the exchange tunneling reaction D+HD$\\rightarrow$D$_{2}$+H in a pure solid HD matrix and in a D$_{2}$ matrix with 0.23$\\%$ HD admixture at temperatures between 130$\\,$mK and 1.5$\\,$K. We found that the exchange reaction rates, $k_{exHD}\\sim3\\times10^{-27}$cm$^{3}$s$^{-1}$ in the pure HD matrix, and $k_{exD_{2}}=9(4)\\times10^{-28}$cm$^{-3}$ in the D$_{2}$ matrix are nearly independent of temperature within this range. This confirms quantum tunnelling nature of these reactions, and their ability to proceed at temperatures down to absolute zero. Based on these observations"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.05588","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}