Few-boson tunneling in a double well with spatially modulated interaction

B. Chatterjee; I. Brouzos; P. Schmelcher; Sascha Zöllner

doi:10.1103/PhysRevA.82.043619

Few-boson tunneling in a double well with spatially modulated interaction

B. Chatterjee, I. Brouzos, P. Schmelcher, Sascha Zöllner

14 Citationer (Scopus)

Abstract

We study few-boson tunneling in a one-dimensional double well with a spatially modulated interaction. The dynamics changes from Rabi oscillations in the noninteracting case to a highly suppressed tunneling for intermediate coupling strengths followed by a reappearance near the fermionization limit. With extreme interaction inhomogeneity in the regime of strong correlations, we observe tunneling between the higher bands. The dynamics is explained on the basis of the few-body spectrum and stationary eigenstates. For a higher number of particles N≥3, it is shown that the inhomogeneity of the interaction can be tuned to generate tunneling resonances. Finally, a tilted double well and its interplay with the interaction asymmetry are discussed.

Originalsprog	Engelsk
Tidsskrift	Physical Review A (Atomic, Molecular and Optical Physics)
Vol/bind	84
Udgave nummer	4
Sider (fra-til)	043619
Antal sider	10
ISSN	2469-9926
DOI	https://doi.org/10.1103/PhysRevA.82.043619
Status	Udgivet - 22 okt. 2010

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10.1103/PhysRevA.82.043619

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abstract = "We study few-boson tunneling in a one-dimensional double well with a spatially modulated interaction. The dynamics changes from Rabi oscillations in the noninteracting case to a highly suppressed tunneling for intermediate coupling strengths followed by a reappearance near the fermionization limit. With extreme interaction inhomogeneity in the regime of strong correlations, we observe tunneling between the higher bands. The dynamics is explained on the basis of the few-body spectrum and stationary eigenstates. For a higher number of particles N≥3, it is shown that the inhomogeneity of the interaction can be tuned to generate tunneling resonances. Finally, a tilted double well and its interplay with the interaction asymmetry are discussed.",

author = "B. Chatterjee and I. Brouzos and P. Schmelcher and Sascha Z{\"o}llner",

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T1 - Few-boson tunneling in a double well with spatially modulated interaction

AU - Chatterjee, B.

AU - Brouzos, I.

AU - Schmelcher, P.

AU - Zöllner, Sascha

PY - 2010/10/22

Y1 - 2010/10/22

N2 - We study few-boson tunneling in a one-dimensional double well with a spatially modulated interaction. The dynamics changes from Rabi oscillations in the noninteracting case to a highly suppressed tunneling for intermediate coupling strengths followed by a reappearance near the fermionization limit. With extreme interaction inhomogeneity in the regime of strong correlations, we observe tunneling between the higher bands. The dynamics is explained on the basis of the few-body spectrum and stationary eigenstates. For a higher number of particles N≥3, it is shown that the inhomogeneity of the interaction can be tuned to generate tunneling resonances. Finally, a tilted double well and its interplay with the interaction asymmetry are discussed.

AB - We study few-boson tunneling in a one-dimensional double well with a spatially modulated interaction. The dynamics changes from Rabi oscillations in the noninteracting case to a highly suppressed tunneling for intermediate coupling strengths followed by a reappearance near the fermionization limit. With extreme interaction inhomogeneity in the regime of strong correlations, we observe tunneling between the higher bands. The dynamics is explained on the basis of the few-body spectrum and stationary eigenstates. For a higher number of particles N≥3, it is shown that the inhomogeneity of the interaction can be tuned to generate tunneling resonances. Finally, a tilted double well and its interplay with the interaction asymmetry are discussed.

U2 - 10.1103/PhysRevA.82.043619

DO - 10.1103/PhysRevA.82.043619

M3 - Journal article

SN - 2469-9926

VL - 84

SP - 043619

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 4

ER -

Few-boson tunneling in a double well with spatially modulated interaction

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