publication . Article . 2011

Interaction-driven interband tunneling of bosons in the triple well

Lushuai Cao; Ioannis Brouzos; Sascha Zöllner; Peter Schmelcher;
Open Access
  • Published: 01 Mar 2011 Journal: New Journal of Physics, volume 13, page 33,032 (eissn: 1367-2630, Copyright policy)
  • Publisher: IOP Publishing
We study the tunneling of a small ensemble of strongly repulsive bosons in a one-dimensional triple-well potential. The usual treatment within the single-band approximation suggests suppression of tunneling in the strong interaction regime. However, we show that several windows of enhanced tunneling are opened in this regime. This enhanced tunneling results from higher band contributions, and has the character of interband tunneling. It can give rise to various tunneling processes, such as single-boson tunneling and two-boson correlated tunneling of the ensemble of bosons, and is robust against deformations of the triple well potential. We introduce a basis of g...
Persistent Identifiers
arXiv: Condensed Matter::Mesoscopic Systems and Quantum Hall EffectCondensed Matter::SuperconductivityCondensed Matter::Quantum Gases
free text keywords: General Physics and Astronomy, MCTDH, [CHIM]Chemical Sciences, [PHYS]Physics [physics], Boson, Strong interaction, Physics, Quantum tunnelling, Condensed matter physics
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