<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>A Feshbach resonance in collisions between ultracold ground state molecules · HackerPapers discussions</title><link>https://hackerpaper.kaipfister.de/p/2208.05557/</link><description>Collected HN comments and submissions linking this paper.</description><language>en</language><lastBuildDate>Mon, 02 Nov 2026 11:16:22 GMT</lastBuildDate><atom:link href="https://hackerpaper.kaipfister.de/p/2208.05557/feed.xml" rel="self" type="application/rss+xml" /><item><title>A Feshbach resonance in collisions between ultracold ground state molecules — mentioned by badcppdev</title><link>https://news.ycombinator.com/item?id=34625784</link><guid isPermaLink="false">urn:hackerpapers:mention:2208.05557:34625784</guid><pubDate>Thu, 02 Feb 2023 12:47:08 GMT</pubDate><description>&lt;p&gt;I hate the phys.org summaries. They don&amp;#x27;t really seem to understand what they are talking about. Preprint or whatever: https://arxiv.org/pdf/2208.05557.pdf Edit: They are observing https://en.wikipedia.org/wiki/Feshbach_resonance in NaLi gas that has been cooled down to 1.8µK. In a nutshell when the applied magnetic field is almost precisely 334.92 Gauss the NaLi molecules couple together a lot more than normal because the magnetic field affects the energy levels of the molecules (the electrons in the molecules). When the energy levels match then certain coupled states are far more likely to…&lt;/p&gt;&lt;p&gt;&lt;a href="https://hackerpaper.kaipfister.de/p/2208.05557/"&gt;Paper and discussion history&lt;/a&gt;. A mention is not an endorsement.&lt;/p&gt;</description><category>cond-mat.quant-gas</category></item></channel></rss>
