Asymmetric many-body loss in a bosonic double well

Anno: 2018

Autori: Denis Z., Tiene A., Salasnich L., Wimberger S.

Affiliazione autori: Univ Parma, Dipartimento Sci Matemat Fis & Informat, Campus Univ,Parco Area Sci n 7-a, I-43124 Parma, Italy; Univ Paris 11, Univ Paris Saclay, F-91405 Orsay, France; Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Via Marzolo 8, I-35131 Padua, Italy; Univ Padua, CNISM, Via Marzolo 8, I-35131 Padua, Italy; CNR, INO, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy; INFN, Sez Milano Bicocca, Grp Collegato Parma, I-43124 Parma, Italy.

Abstract: A Bose gas in a double well is investigated in the presence of single-particle, two-body, and three-body asymmetric loss. The loss induces an interesting decay behavior of the total population as well as a possibility to control the dynamics of the system. In the noninteracting limit with asymmetric single-body dissipation, the dynamics of the populations can be obtained analytically. The general many-body problem requires, however, an adequate approximation. We use a mean-field approximation and the Bogoliubov back reaction beyond mean-field truncation, which we extend up to three-body loss. Both methods are compared with exact many-body Monte Carlo simulations.

Giornale/Rivista: PHYSICAL REVIEW A

Volume: 97 (1)      Da Pagina: 13602-1  A: 13602-9

Maggiori informazioni: We thank Dirk Witthaut for a critical reading of the manuscript. Z.D. acknowledges support by an internship grant from the Universite Paris-Saclay for his stay at Parma. L.S. acknowledges the partial support of the 2016 Budget Integrato per la Ricerca dei Dipartimenti (BIRD) within the project Superfluid properties of Fermi gases in optical potentials of the University of Padova.
Parole chiavi: Stochastic Resonance; Quantum-systems; Driven; States; Atoms; Gas
DOI: 10.1103/PhysRevA.97.013602

Citazioni: 2
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-06-29
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