diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index ec4c7df..f872054 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -214,14 +214,14 @@
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-  "active": "644429833dab1cca",
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+    "SS2026/Quantum Computing/Anhänge/Introduction-to-Quantum-Computing.pdf",
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     "SS2026/Quantum Computing/1. Introduction/Anhänge",
     "SS2026/Quantum Computing/Introduction to Quantum Computing.md",
     "SS2026/Quantum Computing/1. Introduction",
-    "SS2026/Quantum Computing/Anhänge/Introduction-to-Quantum-Computing.pdf",
     "SS2026/Quantum Computing/Anhänge",
     "SS2026/Datenbanken und Informationssysteme/4. SQL/SQL.md",
     "SS2026/Datenbanken und Informationssysteme/Datenbanken und Informationssysteme.md",
diff --git a/SS2026/Quantum Computing/1. Introduction/Introduction.md b/SS2026/Quantum Computing/1. Introduction/Introduction.md
index e8174e6..aa87c47 100644
--- a/SS2026/Quantum Computing/1. Introduction/Introduction.md	
+++ b/SS2026/Quantum Computing/1. Introduction/Introduction.md	
@@ -6,3 +6,13 @@ Photosensitive plate on other side
 Light waves overlap and interfere with each other.
 Same amplitude = reinforcement
 Different amplitude = cancel each other out
+
+With single photons the same happens!
+Photons are in superposition between two paths
+Possibilities interfere with each other
+
+
+## What is a quantum computer?
+Classical Bits = 0 or 1
+Quantum Computer uses qubits = superposition between 0 and 1
+-> Variables that have all possible values at the same time!