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Title: Multiscale quantum-defect theory for two interacting atoms in a symmetric harmonic trap

Abstract

We present a multiscale quantum-defect theory 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 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.

Authors:
;  [1]
  1. Department of Physics and Astronomy, University of Toledo, MS 111, Toledo, Ohio 43606 (United States)
Publication Date:
OSTI Identifier:
20982561
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.75.053601; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ATOMS; DEFECTS; EXCITED STATES; INTERACTIONS; P WAVES; PHOTON-ATOM COLLISIONS; POTENTIALS; QUANTUM MECHANICS; RADIATION PRESSURE; S WAVES; TRAPPING; TRAPS; VAN DER WAALS FORCES

Citation Formats

Chen, Yujun, and Gao, Bo. Multiscale quantum-defect theory for two interacting atoms in a symmetric harmonic trap. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.053601.
Chen, Yujun, & Gao, Bo. Multiscale quantum-defect theory for two interacting atoms in a symmetric harmonic trap. United States. doi:10.1103/PHYSREVA.75.053601.
Chen, Yujun, and Gao, Bo. Tue . "Multiscale quantum-defect theory for two interacting atoms in a symmetric harmonic trap". United States. doi:10.1103/PHYSREVA.75.053601.
@article{osti_20982561,
title = {Multiscale quantum-defect theory for two interacting atoms in a symmetric harmonic trap},
author = {Chen, Yujun and Gao, Bo},
abstractNote = {We present a multiscale quantum-defect theory 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 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.},
doi = {10.1103/PHYSREVA.75.053601},
journal = {Physical Review. A},
number = 5,
volume = 75,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}