Dynamical symmetry and pair tunneling in a one-dimensional Bose gas colliding with a mobile impurity

Tutkimustuotos: Lehtiartikkeli

Tutkijat

Organisaatiot

  • Swiss Federal Institute of Technology Zurich

Kuvaus

Using the time-dependent density-matrix renormalization group, we theoretically study the collision of a one-dimensional gas of interacting bosons with an impurity trapped in a shallow box potential. We study the dynamic response of both the impurity and the bosonic gas, and we find an approximate independence of the sign of the interaction (attractive or repulsive) between the impurity and the bosons. This sign independence breaks down when the interaction energy is of the same order as the box potential depth, leading to resonant pair tunneling. Our predictions can be tested using contemporary techniques with ultracold atoms.

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli032705
Sivut1-6
Sivumäärä6
JulkaisuPhysical Review A
Vuosikerta92
Numero3
TilaJulkaistu - syyskuuta 2015
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

    Tutkimusalat

  • Bose gas, DMRG, impurity problem, one-dimensional systems, quantum dynamics, quantum gases, ultracold atoms

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ID: 1988945