Extract symmetric state section into a new paper

paper/references.bib

@@ -431,3 +431,17 @@
   primaryClass = {quant-ph},
   note = {Very recent (Jan.\ 2026); addresses the geometric measure / overlap-with-product-states problem via multi-copy hierarchies, a related but distinct question from the correlation-tensor witness of Section~\ref{sec:gme-cluster-witness}. Check for overlap before submission.}
 }
+
+@misc{aschauer2026a,
+  author = {Aschauer, Hans},
+  title = {Symmetric Shadow Maps and Multipartite Correlation Criteria},
+  year = {2026},
+  note = {Unpublished}
+}
+
+@misc{aschauer2026b,
+  author = {Aschauer, Hans},
+  title = {Symmetry-adapted block decomposition of the shadow map},
+  year = {2026},
+  note = {Unpublished}
+}