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Multiscale quantum-defect theory for two interacting atoms in a symmetric harmonic trap | | Yujun Chen
; Bo Gao
; | | Date: |
16 Jan 2007 | | Subject: | Statistical Mechanics | | Abstract: | We present a multiscale quantum-defect theory (QDT) for two identical atoms in a symmetric harmonic trap that combines the quantum-defect theory for the van der Waals interaction [B. Gao, Phys. Rev. A extbf{64}, 010701(R) (2001)] at short distances with a quantum-defect theory for the harmonic trapping potential at large distances. The theory provides a systematic understanding of two atoms in a trap, from deeply bound molecular states and states of different partial waves, to highly excited trap states. It shows, e.g., that a strong $p$ wave pairing can lead to a lower energy state around the threshold than a $s$ wave pairing. | | Source: | arXiv, cond-mat/0701384 | | Services: | Forum | Review | PDF | Favorites | |
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