Tri-Vertices & SU(2)’s
Transcript of Tri-Vertices & SU(2)’s
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Tri-Vertices & SU(2)’s
Amihay Hanany
Noppadol Mekareeya
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Introduction
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Introduction
• N=2 gauge theories in 3+1 dimensions
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Introduction
• N=2 gauge theories in 3+1 dimensions
• Vector Multiplet Moduli Space
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Introduction
• N=2 gauge theories in 3+1 dimensions
• Vector Multiplet Moduli Space
• Hypermultiplet Moduli Space
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Introduction
• N=2 gauge theories in 3+1 dimensions
• Vector Multiplet Moduli Space
• Hypermultiplet Moduli Space
• revisit - study a class made out of SU(2)’s
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Introduction
• N=2 gauge theories in 3+1 dimensions
• Vector Multiplet Moduli Space
• Hypermultiplet Moduli Space
• revisit - study a class made out of SU(2)’s
• interesting class of HyperKahler manifolds
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Hypermultipletmoduli space
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Hypermultipletmoduli space
• Most attention in the literature - V plet moduli space (Coulomb branch)
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Hypermultipletmoduli space
• Most attention in the literature - V plet moduli space (Coulomb branch)
• Receives quantum corrections
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Hypermultipletmoduli space
• Most attention in the literature - V plet moduli space (Coulomb branch)
• Receives quantum corrections
• H plet moduli space is classical
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Hypermultipletmoduli space
• Most attention in the literature - V plet moduli space (Coulomb branch)
• Receives quantum corrections
• H plet moduli space is classical
• argue it has many interesting features
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From Quivers to Skeleton Diagrams
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From Quivers to Skeleton Diagrams
• N=2 Quiver - nodes connected by lines
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From Quivers to Skeleton Diagrams
• N=2 Quiver - nodes connected by lines
• each node - V plet
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From Quivers to Skeleton Diagrams
• N=2 Quiver - nodes connected by lines
• each node - V plet
• each line - H plet, bifundamental
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From Quivers to Skeleton Diagrams
• N=2 Quiver - nodes connected by lines
• each node - V plet
• each line - H plet, bifundamental
• extend to other matter?
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Tri-Vertices
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Tri-Vertices
• First - change notation
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Tri-Vertices
• First - change notation
• Inspired by brane configurations, use lines for V plets and nodes for H plets
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Tri-Vertices
• First - change notation
• Inspired by brane configurations, use lines for V plets and nodes for H plets
• restrict to 3-valent vertices and lines representing SU(2) gauge group
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Skeleton Diagrams
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Skeleton Diagrams
• Lines & 3-valent Vertices
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Skeleton Diagrams
• Lines & 3-valent Vertices
• Each Line - V plet with SU(2) gauge group
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Skeleton Diagrams
• Lines & 3-valent Vertices
• Each Line - V plet with SU(2) gauge group
• Each vertex - a tri-fundamental of SU(2)3
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Skeleton Diagrams
• Lines & 3-valent Vertices
• Each Line - V plet with SU(2) gauge group
• Each vertex - a tri-fundamental of SU(2)3
• 8 half hypermultiplets in (2,2,2) of SU(2)3
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Skeleton Diagrams
• Lines & 3-valent Vertices
• Each Line - V plet with SU(2) gauge group
• Each vertex - a tri-fundamental of SU(2)3
• 8 half hypermultiplets in (2,2,2) of SU(2)3
• Length of the line L ~ 1/g 2
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Skeleton Diagrams
• Lines & 3-valent Vertices
• Each Line - V plet with SU(2) gauge group
• Each vertex - a tri-fundamental of SU(2)3
• 8 half hypermultiplets in (2,2,2) of SU(2)3
• Length of the line L ~ 1/g 2
• infinite line - global SU(2) symmetry
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Example: 8 free 1/2 Hypers
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Example: 8 free 1/2 Hypers
• global symmetry SU(2)3
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Example: 8 free 1/2 Hypers
• global symmetry SU(2)3
• No gauge group
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Example: N=4 SU(2) gauge theory
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Example: N=4 SU(2) gauge theory
• 1 gauge group
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Example: N=4 SU(2) gauge theory
• 1 gauge group
• 2 adjoints - an N=2 H plet
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Example: N=4 SU(2) gauge theory
• 1 gauge group
• 2 adjoints - an N=2 H plet
• 2 singlets - decouple
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Example: N=4 SU(2) gauge theory
• 1 gauge group
• 2 adjoints - an N=2 H plet
• 2 singlets - decouple
• infinite line - SU(2) global symmetry
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Example: N=4 SU(2) gauge theory
• 1 gauge group
• 2 adjoints - an N=2 H plet
• 2 singlets - decouple
• infinite line - SU(2) global symmetry
• possible N=2 breaking mass term
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Example: SU(2) with 4 flavors
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Example: SU(2) with 4 flavors
• 1 gauge group
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Example: SU(2) with 4 flavors
• 1 gauge group
• SU(2)4 global symmetry
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Infinite class of SU(2) theories
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Infinite class of SU(2) theories
• For each such diagram write a unique Lagrangian in 3+1 dimensions with N=2 supersymmetry
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Infinite class of SU(2) theories
• For each such diagram write a unique Lagrangian in 3+1 dimensions with N=2 supersymmetry
• Feynmann diagram in phi cubed field theory but each diagram represents a unique Lagrangian
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Conformal Invariance
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Conformal Invariance
• Each finite line has 2 ends
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Conformal Invariance
• Each finite line has 2 ends
• giving 8 fundamental half hypers charged under it
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Conformal Invariance
• Each finite line has 2 ends
• giving 8 fundamental half hypers charged under it
• beta function is 0
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An infinite class of N=2 SCFT’s
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Topology of skeleton diagrams
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Topology of skeleton diagrams
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• each diagram has g loops & e external legs
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Topology of skeleton diagrams
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• each diagram has g loops & e external legs
• Number of gauge groups 3g-3+e
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Topology of skeleton diagrams
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• each diagram has g loops & e external legs
• Number of gauge groups 3g-3+e
• Number of matter fields 2g-2+e
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Topology of skeleton diagrams
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• each diagram has g loops & e external legs
• Number of gauge groups 3g-3+e
• Number of matter fields 2g-2+e
• global symmetry SU(2)e
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HypermultipletModuli Space
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HypermultipletModuli Space
• at generic point gauge group is broken down to U(1)g
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HypermultipletModuli Space
• at generic point gauge group is broken down to U(1)g
• dimension of moduli space (quaternionic)
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HypermultipletModuli Space
• at generic point gauge group is broken down to U(1)g
• dimension of moduli space (quaternionic)
• (2g-2+e) x 8 x 1/2 - [(3g-3+e)x3 - g] = e+1
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HypermultipletModuli Space
• at generic point gauge group is broken down to U(1)g
• dimension of moduli space (quaternionic)
• (2g-2+e) x 8 x 1/2 - [(3g-3+e)x3 - g] = e+1
• No dependence on g
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HypermultipletModuli Space
• at generic point gauge group is broken down to U(1)g
• dimension of moduli space (quaternionic)
• (2g-2+e) x 8 x 1/2 - [(3g-3+e)x3 - g] = e+1
• No dependence on g
• Kibble Branch
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Look for generic resultsdepending on g & enot on Lagrangian
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Chiral Operators on Kibble Branch
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Chiral Operators on Kibble Branch
• Write the theory in N=1 language
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Chiral Operators on Kibble Branch
• Write the theory in N=1 language
• Many chiral operators
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Chiral Operators on Kibble Branch
• Write the theory in N=1 language
• Many chiral operators
• Count Chiral Operators on the Kibble branch
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Chiral Operators on Kibble Branch
• Write the theory in N=1 language
• Many chiral operators
• Count Chiral Operators on the Kibble branch
• Hilbert Series
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What is aHilbert Series?
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What is aHilbert Series?
g({ti}) =∑
i1,...,ik
di1,...,iktii
1· · · tik
k
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What is aHilbert Series?
g({ti}) =∑
i1,...,ik
di1,...,iktii
1· · · tik
k
di1,...,ik
i1, . . . , ik
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Fugacities
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Fugacities
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• t - keeps track of the dimension of operator
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Fugacities
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• t - keeps track of the dimension of operator
• x - SU(2)
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Fugacities
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• t - keeps track of the dimension of operator
• x - SU(2)
• for e SU(2)’s there are e x’s
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Fugacities
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• t - keeps track of the dimension of operator
• x - SU(2)
• for e SU(2)’s there are e x’s
• HS(t, x1, x2, ..., xe)
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Example: g=0, e=3
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Example: g=0, e=3
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Example: g=0, e=3
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1 + [1; 1; 1]t + ([2; 2; 2] + [2; 0; 0] + [0; 2; 0] + [0; 0; 2])t2
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Example: g=0, e=3
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1 + [1; 1; 1]t + ([2; 2; 2] + [2; 0; 0] + [0; 2; 0] + [0; 0; 2])t2
Qa,b,c
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Example: g=0, e=3
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1 + [1; 1; 1]t + ([2; 2; 2] + [2; 0; 0] + [0; 2; 0] + [0; 0; 2])t2
Qa,b,cQ(a,b,cQa′,b′,c′)
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Example: g=0, e=3
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1 + [1; 1; 1]t + ([2; 2; 2] + [2; 0; 0] + [0; 2; 0] + [0; 0; 2])t2
Qa,b,cQa,b,cQa′,b′,c′εa,a′
εb,b′Q(a,b,cQa′,b′,c′)
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Example: g=0, e=3
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1 + [1; 1; 1]t + ([2; 2; 2] + [2; 0; 0] + [0; 2; 0] + [0; 0; 2])t2
Qa,b,cQa,b,cQa′,b′,c′εa,a′
εb,b′Q(a,b,cQa′,b′,c′)
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Plethystics
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Example: g=0, e=4
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Example: g=0, e=4
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• To compute the HS observe
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Example: g=0, e=4
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• To compute the HS observe
• Higgs branch is the moduli space of 1 SO(8) instanton on R4
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Example: g=0, e=4
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• To compute the HS observe
• Higgs branch is the moduli space of 1 SO(8) instanton on R4
• HS was computed and gives
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Example: g=0, e=4
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• To compute the HS observe
• Higgs branch is the moduli space of 1 SO(8) instanton on R4
• HS was computed and gives
•
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HS: g=0, e=4
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HS: g=0, e=4
• Next decompose irreps of SO(8) to SU(2)4
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HS: g=0, e=4
• Next decompose irreps of SO(8) to SU(2)4
• Use fugacity map
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HS: g=0, e=4
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Gluing Theories
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Gluing Theories
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• 2 theories with (g1, e1) & (g2, e2)
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Gluing Theories
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• 2 theories with (g1, e1) & (g2, e2)
• glue by identifying an infinite leg from each
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Gluing Theories
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• 2 theories with (g1, e1) & (g2, e2)
• glue by identifying an infinite leg from each
• turn it into finite line
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Gluing Theories
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• 2 theories with (g1, e1) & (g2, e2)
• glue by identifying an infinite leg from each
• turn it into finite line
• gauging an SU(2) global symmetry
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Gluing Theories
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• 2 theories with (g1, e1) & (g2, e2)
• glue by identifying an infinite leg from each
• turn it into finite line
• gauging an SU(2) global symmetry
• get the theory with (g1+g2, e1+e2-2)
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Gluing 2 theories with(0,3) to form (0,4)
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permutation symmetry
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permutation symmetry
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• The result has S4 symmetry - permutation of external legs (global symmetries)
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Example: g=1, e=1
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g=1, e=1 another method
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g=1, e=1 another method
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• two commuting adjoints
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g=1, e=1 another method
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• two commuting adjoints
• symmetric product of 2 C2 s
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Example: g=1, e=2
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Example: g=2, e=0
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examples: g=3, e=0
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Duality statement
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Duality statement
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• physics depends on g & e and not on the particular choice of the Lagrangian
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Duality statement
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• physics depends on g & e and not on the particular choice of the Lagrangian
• Many to 1 correspondence
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general case: (g,e)
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any g, e=0
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any g, e=1
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g, e=1
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g, e=1
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• complete intersection
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g, e=1
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• complete intersection
• generated by 5 operators
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g, e=1
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• complete intersection
• generated by 5 operators
• triplet of dimension 2; doublet of dimension 2g-1
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g, e=1
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• complete intersection
• generated by 5 operators
• triplet of dimension 2; doublet of dimension 2g-1
• one relation of degree 4g
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generators of the moduli space
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generators
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generators
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• 3e at dimension 2
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generators
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• 3e at dimension 2
• 2e at dimension 2g-2+e
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generators
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• 3e at dimension 2
• 2e at dimension 2g-2+e
• Indication of the complexity at high e
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generators
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• 3e at dimension 2
• 2e at dimension 2g-2+e
• Indication of the complexity at high e
• HyperKahler moduli space
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generators
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• 3e at dimension 2
• 2e at dimension 2g-2+e
• Indication of the complexity at high e
• HyperKahler moduli space
• of dimension e+1
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generators
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• 3e at dimension 2
• 2e at dimension 2g-2+e
• Indication of the complexity at high e
• HyperKahler moduli space
• of dimension e+1
• with SU(2)e isometry
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Summary
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Summary
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• Study SU(2)’s & matter in tri-fundamental
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Summary
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• Study SU(2)’s & matter in tri-fundamental
• properties of H plet moduli space (Kibble branch)
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Summary
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• Study SU(2)’s & matter in tri-fundamental
• properties of H plet moduli space (Kibble branch)
• Special class of HyperKahler manifolds with SU(2)e isometries
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Summary
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• Study SU(2)’s & matter in tri-fundamental
• properties of H plet moduli space (Kibble branch)
• Special class of HyperKahler manifolds with SU(2)e isometries
• Multi-ality: Physics depends on (g,e)
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Summary
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• Study SU(2)’s & matter in tri-fundamental
• properties of H plet moduli space (Kibble branch)
• Special class of HyperKahler manifolds with SU(2)e isometries
• Multi-ality: Physics depends on (g,e)
• Symmetry: symmetric group in e elements
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Thank you!
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Tuesday, May 17, 2011