Nonexponential decay of Feshbach molecules

Anno: 2020

Autori: Pepe FV., Facchi P., Kordi Z., Pascazio S.

Affiliazione autori: Univ Bari, Dipartimento Fis, I-70126 Bari, Italy; Univ Bari, MECENAS, I-70126 Bari, Italy; INFN, Sez Bari, I-70126 Bari, Italy; Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy; CNR, Ist Nazl Ott, I-50125 Florence, Italy.

Abstract: We analyze the temporal behavior of the survival probability of an unstable Li-6 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.

Giornale/Rivista: PHYSICAL REVIEW A

Volume: 101 (1)      Da Pagina: 13632-1  A: 13632-10

Maggiori informazioni: P.F. and S.P. were partially supported by Istituto Nazionale di Fisica Nucleare (INFN) through the project QUANTUM. F.V.P. was supported by INFN through the project PICS. P.F. was partially supported by the Italian National Group of Mathematical Physics of Istituto Nazionale di Alta Matematica (GNFM-INdAM). Z.K. thanks the Abdus Salam ICTP for their financial support through a TRIL Fellowship. Z.K. would also like to thank INFN, Bari, for the hospitality. P.F., F.V.P. and S.P. acknowledge support by MIUR via PRIN 2017 (Progetto di Ricerca di Interesse Nazionale), project QUSHIP (2017SRNBRK). F.V.P. acknowledges support by MIUR through PON ARS 01_00141 CLOSE.
Parole chiavi: Quantum Zeno; Resonances; Law
DOI: 10.1103/PhysRevA.101.013632

Citazioni: 7
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18
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