From a334de1633568423e105543e2486511293ae51ae Mon Sep 17 00:00:00 2001
From: Bas Nijholt <basnijholt@gmail.com>
Date: Fri, 14 Dec 2018 12:19:09 +0000
Subject: [PATCH] use the shift-inverse method for finding sparse eigenvalues
in tutorial
---
doc/source/code/figure/closed_system.py.diff | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/source/code/figure/closed_system.py.diff b/doc/source/code/figure/closed_system.py.diff
index d70b1cc7..1eb0080c 100644
--- a/doc/source/code/figure/closed_system.py.diff
+++ b/doc/source/code/figure/closed_system.py.diff
@@ -71,7 +71,7 @@
ham_mat = syst.hamiltonian_submatrix(args=[B], sparse=True)
# we only calculate the 15 lowest eigenvalues
- ev = sla.eigsh(ham_mat, k=15, which='SM', return_eigenvectors=False)
+ ev = sla.eigsh(ham_mat, k=15, sigma=0, return_eigenvectors=False)
energies.append(ev)
--
GitLab