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Feshbach resonances in 40K

Authors: Ludewig, A.;

Feshbach resonances in 40K

Abstract

De wisselwerking tussen deeltjes bepaalt de eigenschappen van alle materie. Als het mogelijk is de wisselwerking in te stellen, kunnen deze eigenschappen worden veranderd. Er is een mechanisme bekend om de wisselwerking tussen sommige atoomsoorten te veranderen: de zogeheten Feshbach-resonanties. Deze resonanties kunnen optreden in ultrakoude atomen. Het mechanisme werkt alleen als de atomen in gasvorm zijn en tot dichtbij het absolute nulpunt zijn gekoeld. Feshbach-resonanties in ultrakoude atomen zijn al enige tijd bekend. De juiste magnetische veldsterktes waarbij deze resonanties optreden zijn echter nog onbekend en moeten voor elke atoomsoort opnieuw worden bepaald. Antje Ludewig bepaalde voor de kaliumisotoop 40K de waarden van 23 magnetische velden, waar de wisselwerking kan worden toegepast. Deze waarden worden gebruikt om theoretische modellen te verbeteren, zodat het makkelijker wordt Feshbach-resonanties in andere atoomsoorten te voorspellen. Als de wisselwerking tussen ultrakoude atomen ingesteld kan worden, kunnen ultrakoude atomen gebruikt worden als modelsysteem voor het oplossen van andere problemen in de natuurkunde zoals hoge-temperatuursupergeleiding of het gedrag van neutronensterren.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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