The European Physical Journal D

, Volume 65, Issue 1–2, pp 91–98 | Cite as

Collision of one dimensional (1D) spin polarized Fermi gases in an optical lattice

  • J. Kajala
  • F. Massel
  • P. TörmäEmail author
Regular Article Degenerate Fermi gases


In this work we analyze the dynamical behavior of the collision between two clouds of fermionic atoms with opposite spin polarization. By means of the time-evolving block decimation (TEBD) numerical method, we simulate the collision of two one-dimensional clouds in a lattice. There is a symmetry in the collision behaviour between the attractive and repulsive interactions. We analyze the pair formation dynamics in the collision region, providing a quantitative analysis of the pair formation mechanism in terms of a simple two-site model.


Lattice Site Hubbard Model Collision Center Quantum Walk Harmonic Trap 


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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.Aalto University School of ScienceAaltoFinland
  2. 2.Low Temperature LaboratoryAalto UniversityAaltoFinland
  3. 3.Kavli Institute for Theoretical PhysicsUniversity of CaliforniaSanta BarbaraUSA

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