Matthias Troyer wrote:
Now please tell me why the code refuses to generate a matrix (probably for the hopping and exchange terms, but the error message does not state which terms pose a problem). Both terms are even in the creation and annihilation operators (capital S refers to a bosonic spin):
What is the error message and what is the code?
sliwa /var/tmp/alps/alps-applications-1.3.3/tutorial/quantum2$ dirloop_sse --Tmin 10 parm4ax.in.xml Quantum Monte simulations using the generalized directed loop algorithm v. 1.1 available from http://alps.comp-phys.org/ copyright (c) 2001-2005 by Fabien Alet alet@comp-phys.org, Synge Todo wistaria@comp-phys.org, and Matthias Troyer troyer@comp-phys.org see F. Alet, S. Wessel and M. Troyer, Phys. Rev. E 71, 036706 (2005) for details.
using the ALPS parallelizing scheduler copyright (c) 1994-2006 by Matthias Troyer troyer@comp-phys.org. see Lecture Notes in Computer Science, Vol. 1505, p. 191 (1998).
based on the ALPS libraries version 1.3.3 available from http://alps.comp-phys.org/ copyright (c) 1994-2008 by the ALPS collaboration. Consult the web page for license details. For details see the publication: A.F. Albuquerque et al., J. of Magn. and Magn. Materials 310, 1187 (2007).
parsing task files ... Cannot convert fermionic operator to a bosonic matrix
Thanks, Cezary Sliwa
Matthias