vafa pp conv to pdf - princeton university · 2014. 6. 29. · !!!!!1222222222!!!!! a ds 7 £ s 4 =...
TRANSCRIPT
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!On!6d!SCFT’s!!!!!!!!!!!!!!!!!!!!!!!!!!!Cumrun!Vafa!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Strings!2014!!!!!!!!!!!!!!!!!!!!!!!!!!!!Princeton!!!!!!!!!!!!!!!!!!!!!!!!!!!June!23,!2014!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
TexPoint!fonts!used!in!EMF.!!Read!the!TexPoint!manual!before!you!delete!this!box.:!AAAAAAAAAAA!
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Based!on:!!arXiv:1312.5746//On/the/Classifica:on/of/6D/SCFTs/and/Generalized/ADE/Orbifolds/Jonathan!J.!Heckman,!David!R.!Morrison,!Cumrun!Vafa!!M.!Del!ZoPo,!J.!Heckman,!A.!Tomasiello,!C.!Vafa,!to!appear.!
!arXiv:1310.1185//On/orbifolds/of/MJStrings/Babak!Haghighat,!Can!Kozcaz,!Guglielmo!Lockhart,!Cumrun!Vafa!!arXiv:1406.0850!!E!+!E!!!H!!Babak!Haghighat,!Guglielmo!Lockhart,!Cumrun!Vafa!!!
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6d!SCFT’s!enjoy!a!unique!status:!!They!are!the!!highest!dimension!known!non^trivial!CFT’s.!!!!Two!types!based!on!number!of!SUSY’s:!!(2,0):!Believed!to!be!classified!by!an!ADE.!!A:!!Stack!of!parallel!M5!branes!ADE:!type!IIB!at!an!ADE!singularity!!(1,0):!More!difficult!to!classify.!!Many!examples.!Blum,Intriligator;!Seiberg,WiPen;!Hanany,Zaffaroni;!Aspinwall,Morrison;!Ganor,Hanany;!…!
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There!are!two!aspects:!!1^Classify!the!(1,0)!theories!!Will!use!IIB/F^theory!realizakon!!2^Develop!tools!to!study!each!!Tensionless!strings/suspended!M2!branes!!!(update!with!new!results!since!strings!2013)!
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There are two types of deformations: Coulomb/Tensor branch: Higgs Branch:
(Bi¹º ; Ái)! String; Tension = niÁ
i
HyperkÄahler geometry
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Examples:!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!M5!branes!probing!an!An!singularity!!Higgs!branch:!!moving!away!from!singularity!Coulomb!branch:!separakng!M5!branes!!
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Examples:!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!M5!branes!probing!an!An!singularity!!Higgs!branch:!!moving!away!from!singularity!Coulomb!branch:!separakng!M5!branes!!
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Examples:!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!M5!branes!probing!an!An!singularity!!Higgs!branch:!!moving!away!from!singularity!Coulomb!branch:!separakng!M5!branes!!
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Examples:!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!M5!branes!probing!an!An!singularity!!Higgs!branch:!!moving!away!from!singularity!Coulomb!branch:!separakng!M5!branes!!
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!!!
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!!!!Equivalent!to!IIA!construckons!of![GaioPo,Tomasiello]!
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M5!branes!at!the!Hořava^WiPen!wall!!Higgs!branch:!!Dissolving!branes!in!the!wall!!!!!!!!!!!!!!!!!!!!!!!!!!!!giving!finite!size!E8!instantons!Coulomb!branch:!!Moving!away!from!the!wall!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!and!each!other!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!E8!global!symmetry!
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M5!branes!at!the!Hořava^WiPen!wall!!Higgs!branch:!!Dissolving!branes!in!the!wall!!!!!!!!!!!!!!!!!!!!!!!!!!!!giving!finite!size!E8!instantons!Coulomb!branch:!!Moving!away!from!the!wall!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!and!each!other!
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M5!branes!at!the!Hořava^WiPen!wall!!Higgs!branch:!!Dissolving!branes!in!the!wall!!!!!!!!!!!!!!!!!!!!!!!!!!!!giving!finite!size!E8!instantons!Coulomb!branch:!!Moving!away!from!the!wall!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!and!each!other!
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F^theory!realizakon:!
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F^theory!realizakon:!
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1!!!!!!!!!2!!!!!!!!!2!!!!!!!!2!!!!!!!.!.!.!!!!2!
Whereas!the!A!!!!case!was!given!by!(7^brane!dressing!of)!!!!!!!!!!!!!!!!!!!!2!!!!!!!!2!!!!!!!2!!!!.!.!.!!2!
!1!!!!!!!!!!!!!!!2!!!!!!!!!!2!!!!!!!!2!!!!!!.!.!.!!!!2!
n!
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!!!!!!!!!!!!!!!!!!!!!!!!!F^theory!Classificakon!!!!!!!!!!!!!!!!All!the!known!examples!of!(2,0)!and!(1,0)!CFT’s!can!be!realized!in!IIB/F^theory.!!!(2,0)!:!!!!!!ADE!singularikes!of!IIB!!!!!!!!!
!
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O(-1) curve, unlike the O(-2) curve, when shrunk leaves no imprint of singularity in the base. 122222 corresponds to n blow ups of the base. Basic classification strategy: Classify all the possible bases that can appear in F-theory, up to blow ups and adding 7-branes wrapping the cycles (i.e. classify the maximally higgsed phase because in going to Higgs phase we first shrink cycles). Surprising result: All allowed endpoints correspond to orbifold singularities for special subgroups.
C2=¡; ¡ ½ U(2)
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For!a!single!curve:!
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n!
3!!!!!!2!
2!!!!!3!!!!!2!
3!!!!!2!!!!!2!
Building!Blocks!
Non^Higgsable!Clusters!(Morrison^Taylor)!
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In!addikon!to!ADE!endpoints,!there!are!two!addikonal!series!of!endpoints:!A^type,!D^type!similar!to!the!usual!ADE!case!except!the!cyclic!element!does!not!have!determinant!1.!!!!Once!the!base!singularity!is!resolved!we!get:!
Generalized!A!!!!Generalized!D!
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x!!!!x!!!!x!!!x!!!!x!!!!2!!!!2!!!!!!!!!!2!!!2!!!!y!!!!y!!!y!!!!y!!!!y!1!!!!!2!!!!!3!!!!4!!!!!5!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!5!!!!4!!!!!3!!!!2!!!!!1!
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U(2)!subgroup!e.g.!A^case,!generated!by:!
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2
!!!!!!2!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!2!2!!!2!!!!!!!!!2!!!3!!!2!!!!!!!!!!!!!!!!2!!!2!!!!!!!!!2!!4!!!2!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
2!!!2!!!!!!!!!2!!!2!!!3!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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4!!!!4!
5!!!!!1!!!!5!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
6!!!!!1!!!!3!!!!1!!!!!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Each!of!these!end!points!leads!to!a!canonical!tensor!branch!(which!require!addikonal!blow!ups!for!the!ellipkc!3^fold!singularikes)!leading!to!a!final!geometry!of!blow!ups!
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Typically!we!have!a!geometry!of!the!form:!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!^6!!!!!!^1!!!!!!^3!!!!!!!!!!!!!!!!!!!!!!!!!!!!E!!!!!!!!!x!!!!!!SU(3)!!!!!!!!!!E!!!!!
6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!8!
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4!!!!!!1!!!!!!!4!!!!!!1!!!!!!!4!!!!!!1!!!!!!4!!!!!!!!!!!
3!!!!!!1!!!!!!!6!!!!!!1!!!!!!!3!!!!!!1!!!!!!6!!!!!!!!!!!
8!!!!!!1!!!!!!!2!!!!!!3!!!!!!!2!!!!!!1!!!!!!8!!!!!!!!!!!
Emergence!of!repeakng!paPerns!!!!!for!example:!
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8!!!!!!1!!!!!!!2!!!!!!3!!!!!!!2!!!!!!1!!!!!!8!!!!!!!!!!!
Emergence!of!repeakng!paPerns!
2!!!!!!!!!!!!!!!2!!!!!!!!!!!!!!!2!!!!!!!!!!!!!!2!!!!!!!!!!
!!!2!!!!!!!!!!!!!!!!!!!!!!!!!!!!!2!!!!!!!!!!!!!!!!!!!!!!!!!!!!!2!!!!
!!!!!2!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!2!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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M^theory!interpretakon:!!M5!branes!probing!D,E!singularikes.!!For!example:!!
M5!
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M^theory!interpretakon:!!M5!branes!probing!D,E!singularikes.!!For!example:!!
M5!
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M^theory!interpretakon:!!M5!branes!probing!D,E!singularikes.!!For!example:!!
M5!
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M^theory!interpretakon:!!M5!branes!probing!D,E!singularikes.!!For!example:!
M5!
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M^theory!interpretakon:!!M5!branes!probing!D,E!singularikes.!!For!example:!
M5!
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M^theory!interpretakon:!!M5!branes!probing!D,E!singularikes.!!For!example:!
M5!
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M^theory!interpretakon:!!M5!branes!probing!D,E!singularikes.!!For!example:!!!New!frackonal!M5!branaes!
M5!
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M^theory!interpretakon:!!M5!branes!probing!D,E!singularikes.!!For!example:!
M5!
bifundamental!`E7!maPer’!=SCFT!
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M-theory Large N Duals Some of these theories admit simple large N duals:
AdS7 £ S4=¡ADE
AdS7 £ S4=Z2
AdS7 £ S4=¡ADE £ Z2
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!M^theory!Large!N!Duals!!!!!!Some!of!these!theories!admit!simple!large!N!duals:!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
AdS 7 £ S 4=¡ A D E
AdS 7 £ S 4=Z2
AdS 7 £ S 4=¡ A D E £ Z2
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M-theory Large N Duals Some of these theories admit simple large N duals: e.g. E7: 52222….22225 1222222222
AdS7 £ S4=¡ADE
AdS7 £ S4=Z2
AdS7 £ S4=¡ADE £ Z2
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!M^theory!Large!N!Duals!!!!!!Some!of!these!theories!admit!simple!large!N!duals:!!!!!!!!!!e.g.!!E7:!52222….22225!!!!!!!!!!!!!!!!!!!1222222222!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
AdS 7 £ S 4=¡ A D E
AdS 7 £ S 4=Z2
AdS 7 £ S 4=¡ A D E £ Z2
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Computation of the Superconformal Index
ZS5£S1 =RMC
ZR4£T 2 Z0R4£T 2 Z
00R4£T 2
[Lockhart,V; Kim ] can be computed using string instantons: : The elliptic genus of n strings twisted by rotations of and global symmetries of CFT. Alternatively can be computed using topological string/Nekrasov partition function.
3 ZR4£T 2
ZR4£T 2 =P
n e¡n¢t ZnT 2
ZnT 2R4
ZR4£T 2
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For!the!theory!of!!M5!branes!probing!A!!!!!!!:!
N!!!!!!!!N!!!!!!!N!!!!!.!.!.!!!!!!!N!!!!!!!N!!!!!!!N!!!!!!!!N!
N^1!
There!are!M^1!different!strings.!!They!form!a!(4,0)!supersymmetric!theory!in!2d.!!If!we!denote!their!numbers!by!k!!!,…,k!!!!!!!!,!the!corresponding!theory!is!a!quiver!theory:!
1!!!!!!!!M^1!
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The!ellipkc!genus!can!be!computed![Gadde,Gukov;!Benini,Eager,Hori,Tachikawa]!
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One learns unlike fundamental strings, tensionless strings do form bound states which is reflected in:
Z2(¿) 6= 12 [(Z1(¿)
2 + Z1(2¿) + Z1(¿2 ) + Z1(
¿+12 )]
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!!!!!!!!!!!!!!!!!!!!!!!!!!A!Dual!Descripkon:!QM!!In!M^theory,!strings!arise!as!M2!branes!suspended!between!M5!branes.!Leads!to!a!dual!perspeckve:!!!!!!!!!!!!!!!!!!!!!!!3=2+1;!!i.e.!string,!versus!QM!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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A Dual Description: QM In M-theory, strings arise as M2 branes suspended between M5 branes. Leads to a dual perspective: 3=2+1; i.e. string, versus QM
h0j:::D exp(¡¯1H)D exp(¡¯2H)D :::j0i
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E-string:
Using recent results for topological string on K3/2 [Huang,Klemm,Poretschkin] extract .
1
Z2 ! hM9(2)j
hM9jexp(¡¯1H)Dj0i
ZE-str2 = DM9;LDM5; +D
M9;LDM5;
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hM9jexp(¡¯1H)D exp(¡¯2H)jM9i
n n n
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E+E Æ H
hM9jexp(¡¯1H) exp(¡¯2H)jM9i= ZHeterotic
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!E+E!!!!!H!
hM9jexp(¡ * 1H ) exp(¡ * 2H )jM9i= Z H eter oti c
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Zhet2 (¿; ²; ~mE8;L; ~mE8;R) = 2N(¿; ~mE8;L; ²)N(¿; ~mE8;R; ²)
´(¿)24µ1(¿ ;¡3²)µ1(¿ ;¡2²)2µ1(¿ ;¡²)µ1(¿ ; ²)2µ1(¿ ; 2²)2
+ 2N(¿; ~mE8;L; ²)N(¿; ~mE8;R; ²)
´(¿)24µ1(¿ ;¡²)µ1(¿ ; ²)2µ1(¿ ; 2²)2µ1(¿ ; 3²)µ1(¿ ; 4²)2:
(1)
Zhet2 (¿;~²; ~mE8£E8) =1
2
·³Zhet1 (¿;~²; ~mE8£E8)
´2+ Zhet1 (2¿; 2~²; 2~mE8£E8)
+ Zhet1 (¿
2;~²; ~mE8£E8) + Z
het1 (
¿ + 1
2;~²; ~mE8£E8)
¸:
Zhet1 =
µ#E8(~mE8;L)£ #E8(~mE8;R)
´16
¶´4
µ1(²1)µ1(²2)µ1(²3)µ1(²4); (1)
Comparing to the usual expression leads to highly non-trivial identities, that we have checked to high order.
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!Conclusions!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1^Classificakon!of!maximally!Higgsed!branches!of!(1,0)!theories!completed!(within!F^theory)!leading!to!a!generalized!ADE!classificakon.!!2^Strings!in!the!Coulomb!branch!of!some!of!!these!theories!are!being!understood!and!used!to!compute!supersymmetry!protected!quankkes!for!the!(1,0)!theory.!
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