Record Details

A Fortran 90 program to solve the Hartree–Fock equations for interacting spin-1/2 fermions confined in harmonic potentials

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title A Fortran 90 program to solve the Hartree–Fock equations for interacting spin-1/2 fermions confined in harmonic potentials
 
Creator PAL, HRIDIS KUMAR
SHUKLA, ALOK
 
Subject harmonic oscillators
fermion systems
magneto-optical effects
fortran
 
Description A set of weakly interacting spin-1/2 Fermions, confined by a harmonic oscillator potential, and interacting with each other via a contact potential, is a model system which closely represents the physics of a dilute gas of two-component fermionic atoms confined in a magneto-optic trap. In the present work, our aim is to present a Fortran 90 computer program which, using a basis set expansion technique, solves the Hartree–Fock (HF) equations for spin-1/2 Fermions confined by a three-dimensional harmonic oscillator potential, and interacting with each other via pair-wise delta-function potentials. Additionally, the program can also account for those anharmonic potentials which can be expressed as a polynomial in the position operators x, y, and z. Both the restricted-HF (RHF), and the unrestricted-HF (UHF) equations can be solved for a given number of Fermions, with either repulsive or attractive interactions among them. The option of UHF solutions for such systems also allows us to study possible magnetic properties of the physics of two-component confined atomic Fermi gases, with imbalanced populations. Using our code we also demonstrate that such a system exhibits shell structure, and follows Hund's rule.
 
Publisher Elsevier
 
Date 2009-04-03T09:06:10Z
2011-11-25T20:41:32Z
2011-12-26T13:08:42Z
2011-12-27T05:34:00Z
2009-04-03T09:06:10Z
2011-11-25T20:41:32Z
2011-12-26T13:08:42Z
2011-12-27T05:34:00Z
2008
 
Type Article
 
Identifier Computer Physics Communications 179(4), 267-274
http://dx.doi.org/10.1016/j.cpc.2008.04.004
http://hdl.handle.net/10054/1132
http://dspace.library.iitb.ac.in/xmlui/handle/10054/1132
 
Language en