Josephson effect throughout the BCS-BEC crossover

• Published in: Physical review letters Vol. 99; no. 4; p. 040401
• Main Authors: Spuntarelli, A, Pieri, P, Strinati, G C
• Format: Journal Article
• Language: English
• Published: United States 27.07.2007

We study the stationary Josephson effect for neutral fermions across the BCS-BEC (Bose-Einstein condensate) crossover, by solving numerically the Bogoliubov-de Gennes equations at zero temperature. The Josephson current is found to be considerably enhanced for all barriers at about unitarity. For va...