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Fermi polaron in two dimensions: Importance of the two-body bound state

โœ Scribed by Klawunn, Michael; Recati, Alessio


Book ID
120559619
Publisher
The American Physical Society
Year
2011
Tongue
English
Weight
226 KB
Volume
84
Category
Article
ISSN
1050-2947

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We study the unique bound state which (-d2/dx2) + hV and -A + XV (in two dimensions) have when A is small and V is suitable. Our main results give necessary and sufficient conditions for there to be a bound state when h is small and we prove analyticity (resp. nonanalyticity) of the energy eigenvalu