Meanings
plural Feshbach resonances
- countableuncountablenatural sciencesThe situation where two slow atoms collide and temporarily stick together, forming an unstable compound with a short lifetime. It is a feature of many-body systems in which a bound state is achieved if the coupling(s) between at least one internal degree of freedom and the reaction coordinates, which lead to dissociation, vanish.
Synonyms: Fano-Feshbach resonance
Synonyms & antonyms
nounThe situation where two slow atoms collide and temporarily stick together, forming an unstable compound with a short lifetime. It is a feature of many-body systems in which a bound state is achieved if the coupling(s) between at least one internal degree of freedom and the reaction coordinates, which lead to dissociation, vanish.
Origin
Named after American physicist Herman Feshbach.
Full word history & related roots →Cite this entry
Feshbach resonance. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Feshbach%20resonance
“Feshbach resonance.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Feshbach%20resonance. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “Feshbach resonance,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Feshbach%20resonance.
Source: Feshbach resonance on Wiktionary, CC BY-SA 4.0.