Peng Zhou

stream of notes

User Tools

Site Tools


blog:2023-04-30

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
blog:2023-04-30 [2023/04/30 17:41] – [Dimer? Quiver? Spectral Curve? 2d Torus?] pzhoublog:2023-04-30 [2023/06/25 15:53] (current) – external edit 127.0.0.1
Line 1: Line 1:
 ====== 2023-04-30 ====== ====== 2023-04-30 ======
   * More on quiver gauge theory from toric CY3   * More on quiver gauge theory from toric CY3
 +  * Editing the paper
  
 ===== quiver gauge theory from toric CY3 ===== ===== quiver gauge theory from toric CY3 =====
Line 52: Line 53:
 $$ |\Sigma_X| = \sigma_X \In N_X \Rightarrow \sigma_X^\vee \In M_X $$ $$ |\Sigma_X| = \sigma_X \In N_X \Rightarrow \sigma_X^\vee \In M_X $$
 So, I do have things living on $(N_X)_T$ and $(N_X)'_T$. So, I do have things living on $(N_X)_T$ and $(N_X)'_T$.
 +
 +==== Toric CY3 X, as the A-side ====
 +What kind of superpotential do I want to have on $X$? I want sum of monomials, that pairs-positively with the cone $\sigma_X$, that is, maybe the ray generators of $\sigma_X^\vee$. 
 +
 +
 +** Ex: $X = \C^3$ **, we want 
 +$$ \wt W_X = xyz + \epsilon(x+y+z) $$
 +
 +** Ex: $X$ is conifold **, say the ray generators of $\sigma_X$ is 
 +$$ (0,0,1), (1,0,1), (0,1,1), (1,1,1). $$
 +with divisors called $D_1, \cdots, D_4$. 
 +Then, the dual cone has generators
 +$$ (1,0,0), (0,1,0), (0,-1,1), (-1, 0, 1). $$
 +Let's call these generators $W_1, \cdots, W_4$, with $W_1 W_4 = W_2 W_3$. We want
 +$$ W = W_{(0,0,1)} + \epsilon(W_1 + W_2 + W_3 + W_4) $$
 +Suppose we have a corner vertex given by intersection of $D_1, D_2, D_3$, then the function looks like
 +$$ W = xyz + \epsilon(x+y+xz + yz) $$
 +
 +OK, fine. 
 +
 +==== The 3d and 2d torus on the X-side ====
 +$\gdef\La{\Lambda}$
 +
 +X is the A-side. Except $X$ is the compactification of $(\C^*)^3$. 
 +
 +The skeleton $\Lambda_X \In (N_X)_T \times (M_X)_\R$, where its projection $\La_X$ on $(M_X)_\R$ is the dual cone subdivided by a ray $\xi_X$.  And its projection to $(N_X)_T$ is a periodization of $\Sigma_X$. 
 +
 +I am not sure what am I supposed to do with this setup. This should be called: mirror symmetry with toric CY3 as the A-side, and with superpotential of hierarchy. 
 +
 +The B-side, $Y$, will have compactification. The moment polytope of $Y$ is the simplest way to describe it, it is just the truncated $\Sigma_X$, with flat bottom. Then, the superpotential is just these monomials, labelled by $A_X$, and the critical loci is the compactified spectral curve. 
 +
 +We are interested in counting disks ending on a Lagrangian. many ways to cook up Lagrangians here. don't worry.
 +
 +What do you want? Restrict to one monomial, and look at all the nearby monomials. That's restrict to some open part of the skeleton. 
 +
 +OK, in terms of skeleton and 2d torus on the $X$-side, or rather $X' = W_X^{-1}(1)$ side, I am completely happy. But, where is the dimer? Dimer data is the same as the zigzag path (at least in some nice cases)
 +
 +** What is a dimer? Dimer is a particular Lagrangian filling of a Legendrian boundary condition. **
 +
 +==== Remaining Questions ====
 +What is dimer mutation? Well, for a given alternativing Lagrangian, the local system on it only support some $(\C^*)^k$ torus open chart worth of objects among all the allowed guys. 
 +
 +We are looking at the moduli space of rank $1$ sheaves on the toric stack $Y'$. Basically, we can change the parameters of the coefficients. What's the big deal then? 
 +
 +What is your starting point? For TWZ or STWZ or STW, their starting point is a singular 2-dimensional skeleton, obtained by gluing disks to a surface. The moduli space of microlocal rank 1 sheaves on it, forms a cluster variety. 
 +
 +
 +
 +
  
  
blog/2023-04-30.1682876468.txt.gz · Last modified: 2023/06/25 15:53 (external edit)