Phys. Rev. A 72, 022346 (2005) [5 pages]s-wave quantum entanglement in a harmonic trapReceived 28 February 2005; published 31 August 2005 We analyze the quantum entanglement between two interacting atoms trapped in a spherical harmonic potential. At ultracold temperature, ground-state entanglement is generated by the dominated s-wave interaction. Based on a regularized pseudopotential Hamiltonian, we examine the quantum entanglement by performing the Schmidt decomposition of low-energy eigenfunctions. We indicate how the atoms are paired and quantify the entanglement as a function of a modified s-wave scattering length inside the trap. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.72.022346
DOI:
10.1103/PhysRevA.72.022346
PACS:
03.67.Mn, 03.65.Ud, 32.80.Pj
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