Radio frequency spectra of a trapped unitary Li6 gas are reported and analyzed in terms of a theoretical approach that includes both final-state and trap effects. The different strength of the final-state interaction across the trap is crucial for evidencing two main peaks associated with two distinct phases residing in different trap regions. These are the pairing-gap and pseudo-gap phases below the critical temperature T c, which evolve into the pseudo-gap and no-gap phases above Tc. In this way, a long standing puzzle about the interpretation of rf spectra for Li6 in a trap is solved.

Pairing-gap, pseudo-gap, and no-gap phases in the radio-frequency spectra of a trapped unitary 6Li gas

PIERI, Pierbiagio;PERALI, Andrea;STRINATI CALVANESE, Giancarlo;
2011-01-01

Abstract

Radio frequency spectra of a trapped unitary Li6 gas are reported and analyzed in terms of a theoretical approach that includes both final-state and trap effects. The different strength of the final-state interaction across the trap is crucial for evidencing two main peaks associated with two distinct phases residing in different trap regions. These are the pairing-gap and pseudo-gap phases below the critical temperature T c, which evolve into the pseudo-gap and no-gap phases above Tc. In this way, a long standing puzzle about the interpretation of rf spectra for Li6 in a trap is solved.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11581/213458
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