Journal
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Volume 41, Issue 21, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-4075/41/21/215301
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Funding
- Science Foundation Ireland [05/IN/I852]
- UREKA [05/IN.1/I852ur07.1]
- Science Foundation Ireland (SFI) [05/IN.1/I852ur07.1] Funding Source: Science Foundation Ireland (SFI)
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We investigate low-density, quantum-degenerate gases in the presence of a localized attractive potential in the centre of a one-dimensional harmonic trap. The attractive potential is modelled using a parameterized d-function, allowing us to determine all single-particle eigenfunctions analytically. From these we calculate the ground-state many-body properties for a system of spin-polarized fermions and, using the Bose-Fermi mapping theorem, extend the results to strongly interacting bosonic systems. We discuss the single-particle densities, the pair-correlation functions, the reduced single-particle density matrices and the momentum distributions as a function of the particle number and strength of the attractive point potential. As an important experimental observable, we place special emphasis on spatial coherence properties of such samples.
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