diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index f872054..c9f428a 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -13,12 +13,12 @@
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               "type": "markdown",
               "state": {
-                "file": "SS2026/Quantum Computing/1. Introduction/Introduction.md",
+                "file": "SS2026/Quantum Computing/2. Probabilistic systems/Probabilistic Systems.md",
                 "mode": "source",
                 "source": false
               },
               "icon": "lucide-file",
-              "title": "Introduction"
+              "title": "Probabilistic Systems"
             }
           }
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@@ -216,8 +216,10 @@
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   "lastOpenFiles": [
-    "SS2026/Quantum Computing/Anhänge/Introduction-to-Quantum-Computing.pdf",
     "SS2026/Quantum Computing/1. Introduction/Introduction.md",
+    "SS2026/Quantum Computing/Anhänge/Introduction-to-Quantum-Computing.pdf",
+    "SS2026/Quantum Computing/2. Probabilistic systems/Probabilistic Systems.md",
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@@ -244,7 +246,6 @@
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     "SS2026/Datenbanken und Informationssysteme/9. RDF und Semantic Web/Anhänge",
     "SS2026/Datenbanken und Informationssysteme/9. RDF und Semantic Web",
-    "SS2026/Datenbanken und Informationssysteme/8. Alternative Datenmodelle und No-SQL/Anhänge",
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@@ -260,7 +261,6 @@
     "SS2026/Datenbanken und Informationssysteme/2. ER-Modell/Entity-Relationship-Modell.md",
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     "SS2026/Datenbanken und Informationssysteme/2. ER-Modell/Erweitertes Konzept isA.md",
-    "SS2026/Datenbanken und Informationssysteme/2. ER-Modell/Datenbankentwurf.md",
-    "SS2026/Datenbanken und Informationssysteme/2. ER-Modell/Kardinalitäten.md"
+    "SS2026/Datenbanken und Informationssysteme/2. ER-Modell/Datenbankentwurf.md"
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 }
\ No newline at end of file
diff --git a/SS2026/Quantum Computing/1. Introduction/Introduction.md b/SS2026/Quantum Computing/1. Introduction/Introduction.md
index aa87c47..cb40026 100644
--- a/SS2026/Quantum Computing/1. Introduction/Introduction.md	
+++ b/SS2026/Quantum Computing/1. Introduction/Introduction.md	
@@ -16,3 +16,8 @@ Possibilities interfere with each other
 Classical Bits = 0 or 1
 Quantum Computer uses qubits = superposition between 0 and 1
 -> Variables that have all possible values at the same time!
+
+### Quantum parallelism
+Quantum computers apply operations to all possible input value at the same time
+After a quantum computer has calculated a superposition of all possible values
+you measure the result and the superposition collapses to a single random f(x)
\ No newline at end of file
diff --git a/SS2026/Quantum Computing/2. Probabilistic systems/Probabilistic Systems.md b/SS2026/Quantum Computing/2. Probabilistic systems/Probabilistic Systems.md
new file mode 100644
index 0000000..c981f0b
--- /dev/null
+++ b/SS2026/Quantum Computing/2. Probabilistic systems/Probabilistic Systems.md	
@@ -0,0 +1,3 @@
+### Deterministic possibilities
+All the different possible outcomes.
+Random two bit number has deterministic possibilities 00, 01, 10, 11.
\ No newline at end of file