caa a22 4500 445366486 CHVBK 20180317142932.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10909-011-0402-9 doi (NATIONALLICENCE)springer-10.1007/s10909-011-0402-9 Bose and Fermi Gases with Lennard-Jones Interactions [Elektronische Daten] [J. Egger, E. Krotscheck, R. Zillich] We study a model for cold Bose and Fermi gases based on the Lennard-Jones interaction, using the optimized (Fermi-)hypernetted-chain ((F)HNC-EL) method. For comparison, we also have carried out path integral ground state Monte Carlo (PIGSMC) simulations in the Bose case. By varying the density and the coupling strength for the Lennard-Jones potential, we cover the whole range of dilute, weakly interacting gases up to the dense, strongly interacting case of liquid 3He and 4He. Below about 20percent helium equilibrium density, the simplest version of the (F)HNC-EL theory is accurate within better than 1percent. Springer Science+Business Media, LLC, 2011 Bose gas nationallicence Fermi gas nationallicence Equation of state nationallicence Scattering length nationallicence Egger J. Institute for Theoretical Physics, Johannes Kepler University, Linz, Austria aut Krotscheck E. Institute for Theoretical Physics, Johannes Kepler University, Linz, Austria aut Zillich R. Institute for Theoretical Physics, Johannes Kepler University, Linz, Austria aut Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 165/5-6(2011-12-01), 275-291 0022-2291 165:5-6<275 2011 165 10909 https://doi.org/10.1007/s10909-011-0402-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10909-011-0402-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Egger J. Institute for Theoretical Physics, Johannes Kepler University, Linz, Austria aut NATIONALLICENCE 700 1- Krotscheck E. Institute for Theoretical Physics, Johannes Kepler University, Linz, Austria aut NATIONALLICENCE 700 1- Zillich R. Institute for Theoretical Physics, Johannes Kepler University, Linz, Austria aut NATIONALLICENCE 773 0- Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 165/5-6(2011-12-01), 275-291 0022-2291 165:5-6<275 2011 165 10909 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer