The Mermin-Wagner Theorem - Condensed Matter Theory Group
The Mermin-Wagner Theorem - Condensed Matter Theory Group
The Mermin-Wagner Theorem - Condensed Matter Theory Group
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How symmetry breaking occurs in principle<br />
Actors<br />
Proof of the <strong>Mermin</strong>-<strong>Wagner</strong> <strong>The</strong>orem<br />
Discussion<br />
<strong>The</strong> Bogoliubov inequality<br />
<strong>The</strong> <strong>Mermin</strong>-<strong>Wagner</strong> <strong>The</strong>orem<br />
For the proof of the <strong>Mermin</strong>-<strong>Wagner</strong> <strong>The</strong>orem we will use the<br />
Bogoliubov inequality<br />
1<br />
2 β<br />
A, A †<br />
[C, H] − , C<br />
+<br />
†<br />
<br />
≥<br />
−<br />
<br />
[C, A] 2 −<br />
Andreas Werner <strong>The</strong> <strong>Mermin</strong>-<strong>Wagner</strong> <strong>The</strong>orem
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