Predictions for the chemical potential and the excitation gap recently obtained by our diagrammatic theory for the Bardeen-Cooper-Schreiffer–Bose-Einstein Condensation crossover in the superfluid phase are compared with quantum Monte Carlo results at zero temperature now available in the literature. A remarkable agreement is found between the results obtained by the two approaches.
Comparison between a diagrammatic theory for the BCS-BEC crossover and quantum Monte Carlo results / PIERI, Pierbiagio; PISANI L.; STRINATI CALVANESE, Giancarlo. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - STAMPA. - 72:1(2005), pp. 012506-1-012506-3. [10.1103/PhysRevB.72.012506]
Comparison between a diagrammatic theory for the BCS-BEC crossover and quantum Monte Carlo results
PIERI, Pierbiagio;PISANI L.;
2005
Abstract
Predictions for the chemical potential and the excitation gap recently obtained by our diagrammatic theory for the Bardeen-Cooper-Schreiffer–Bose-Einstein Condensation crossover in the superfluid phase are compared with quantum Monte Carlo results at zero temperature now available in the literature. A remarkable agreement is found between the results obtained by the two approaches.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
