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S-wave quantum entanglement in a harmonic trap

Jia Wang·C. K. Law·M. -C. Chu
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Abstract

We analyze the quantum entanglement between two interacting atoms trapped in a spherical harmonic potential. At ultra-cold temperature, ground state entanglement is generated by the dominated s-wave interaction. Based on a regularized pseudo-potential 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.

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Jia Wang, C. K. Law, M. -C. Chu. 2005-07-25. S-wave quantum entanglement in a harmonic trap. https://doi.org/10.1103/physreva.72.022346

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