Eric Sharpe - Examples of homological projective duality in physics
Eric Sharpe - Examples of homological projective duality in physics
Eric Sharpe - Examples of homological projective duality in physics
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We physicists speak <strong>of</strong> Kahler phases,<br />
which are the chambers <strong>in</strong> VGIT.<br />
One description <strong>of</strong> result is as LG models:<br />
V//C × =<br />
(<br />
)<br />
C 4 (1) ⊕ C2 (−2)<br />
//C ×<br />
V// + C × :<br />
LG model on<br />
Tot( O(-2) 2 --> P 3 )<br />
Kahler<br />
r<br />
V// − C × :<br />
LG model on<br />
Tot( O(-1) 4 --> P 1 [2,2] )<br />
W = ∑ a<br />
both with<br />
p a Q a (φ) = ∑ ij<br />
φ i A ij (p)φ j