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Numerically approximate solutions of the time-dependent Gross-Pitevsekii equation in a uniformly rotating, one-dimensional ring potential.

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GPECN1DTDPBC

GPECN1DTDPBC is a Fortran-based program that solves the time-dependent Gross-Pitevsekii equation (GPE) in a uniformly rotating reference frame for a single component Bose-Einstein condensate (BEC) in one-dimension using the Crank-Nicolson finite difference scheme.

This implementation of the Crank-Nicolson scheme attempts to properly account for the time-dependence of the external and mean-field potentials of the condensate by deriving the scheme using the integral form of the unitary time-evolution operator for a time-dependent Hamiltonian. An iterative approach is then used to determine the unknown mean-field potential at each time step.

In addition, the program assumes an S1 configuration space for the system (i.e., the condesate is propagating in a one-dimensional, cicular ring) and therefore implements periodic boundary conditions using the Sherman-Morrison algorithm.

USAGE

make
./gpecn1Dtdpbc.sh

DEPENDENCIES

GPECN1DTDPBC depends on the ZGTSV and XERBLA subroutines from LAPACK version 3.1.0. The source code for these subroutines as well as the LAPACK LICENSE file are distributed with GPECN1DTDPBC and may be found in libraries/lapack subdirectory.

CITATION

To cite the use of this work in a scientific publication, please use the following reference:

@unpublished{kandesmc:2011a,
    author = "Kandes, M. C.", 
    title = "Sagnac Interferometry with Bose-Einstein Condensates in
             a Uniformly Rotating Ring Trap",
    school = "Claremont Graduate University \& San Diego State 
              University",
    note = "Ph.D. Qualifying Exam",
    year = "2011",
}

Author

Marty Kandes, Ph.D.
Computational & Data Science Research Specialist
High-Performance Computing User Services Group
San Diego Supercomputer Center
University of California, San Diego

COPYRIGHT

Copyright (c) 2010 - 2021 Martin Charles Kandes

LICENSE

The MIT License (MIT)

LAST UPDATED

Tuesday, April 13th, 2021

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Numerically approximate solutions of the time-dependent Gross-Pitevsekii equation in a uniformly rotating, one-dimensional ring potential.

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