diff --git a/examples/README.md b/examples/README.md
index fb6201f..04782f1 100644
--- a/examples/README.md
+++ b/examples/README.md
@@ -58,3 +58,13 @@ http://plato.asu.edu/sub/testcases.html.
   > M. Kocvara and J. Zowe. How mathematics can help in design of mechanical
   > structures. In D.F. Griffiths and G.A. Watson, eds., Numerical Analysis
   > 1995, Longman, Harlow, 1996, pp. 76--93.
+  
+
+- **quantum.mat**: A traditional problem from quantum information theory,
+  it computes the probability of succesfully distinguishing two quantum states.
+  It's used to test SeDuMi's support for complex numbers.
+  For details see
+
+  > [Quantum state discrimination](https://en.wikipedia.org/wiki/Quantum_state_discrimination)
+
+  Optimal value is `-0.75395345`
diff --git a/examples/quantum.mat b/examples/quantum.mat
new file mode 100644
index 0000000..4856aaf
Binary files /dev/null and b/examples/quantum.mat differ
diff --git a/examples/test_sedumi.m b/examples/test_sedumi.m
index 6226ae6..85ad5b3 100644
--- a/examples/test_sedumi.m
+++ b/examples/test_sedumi.m
@@ -22,9 +22,10 @@ function test_sedumi (do_rebuild, do_exit)
   test_problems = { ...
     'arch0.mat',                  -5.665170e-01; ...
     'control07.mat',              -2.062510e+01; ...
-    'nb.mat',                     -5.070309e-02;  ...
+    'nb.mat',                     -5.070309e-02; ...
     'OH_2Pi_STO-6GN9r12g1T2.mat',  7.946708e+01; ...
-    'trto3.mat',                  -1.279999e+04};
+    'trto3.mat',                  -1.279999e+04; ...
+    'quantum.mat', 				  -0.75395345};
 
   tol = 1e-6;