We analyze the temporal behavior of the survival probability of an unstable Li6 Feshbach molecule close to the BCS-BEC crossover. We find different instances of nonexponential decay as the magnetic field approaches the resonance value, at which the molecule becomes stable. We observe a transition from an exponential decay towards a regime dominated by a stretched-exponential law.

Nonexponential decay of Feshbach molecules

Pepe F. V.;Facchi P.;Pascazio S.
2020

Abstract

We analyze the temporal behavior of the survival probability of an unstable Li6 Feshbach molecule close to the BCS-BEC crossover. We find different instances of nonexponential decay as the magnetic field approaches the resonance value, at which the molecule becomes stable. We observe a transition from an exponential decay towards a regime dominated by a stretched-exponential law.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11586/265024
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