Four-loop perturbative Konishi from the AdS S5 string

Four-loop perturbative Konishi from the AdS5 × S5

string sigma model

Romuald A. Janik

Jagellonian UniversityKrakow

Strings 2008

Z. Bajnok, RJ: 0807.0499

Romuald A. Janik (Krakow) Four-loop Konishi from strings Strings 2008 1 / 14

Outline

1 Motivation

2 The Konishi operator

3 Asymptotic Bethe Ansatz and wrapping interactions

4 Multiparticle Luscher corrections

5 The Konishi computation

6 Conclusions

Four-loop perturbative Konishi from the AdS5 × S5

string sigma model

Romuald A. Janik

Jagellonian UniversityKrakow

Strings 2008

Z. Bajnok, RJ: 0807.0499

Outline

1 Motivation

2 The Konishi operator

3 Asymptotic Bethe Ansatz and wrapping interactions

4 Multiparticle Luscher corrections

5 The Konishi computation

6 Conclusions

Motivation

Basic question:

Find the spectrum of N = 4 SYM theory (in the planar limit) for any value of ’tHooft coupling λ = g2

Spectrum ≡ set of eigenvalues of the dilatation operator≡ anomalous dimensions of all operators in SYM

Equivalently:

Find the spectrum of free (large Nc) type IIB superstring on AdS5 × S5 for anyvalue of λ

Spectrum ≡ set of quantized energy levels of the worldsheet superstring QFT

Motivation

Basic question:

Equivalently:

Motivation

Basic question:

Equivalently:

Motivation

Basic question:

Equivalently:

Motivation

Basic question:

Equivalently:

Motivation

Basic question:

Equivalently:

Motivation

Basic question:

Equivalently:

Motivation

Basic question:

Equivalently:

Motivation

Basic question:

Equivalently:

Motivation

Basic question:

Equivalently:

Motivation

Basic question:

Equivalently:

Motivation

Basic question:

Equivalently:

Motivation

Continue string theory results all the way from strong to weak couplingto make contact with gauge theory perturbative computations

Direct verification of AdS/CFT!!

Starting point:

use worldsheet QFT of the AdS5 × S5 superstring in the uniform light-conegauge

highly interacting theory

gauge theory perturbative regime ≡ deeply quantum regime of the theory

Integrability: the exact S-matrix of the 2D worldsheet QFT of the superstringin AdS5 × S5 is believed to be known

use this information to perform the computation

−→ compute the anomalous dimension of the Konishi operator at 4-loop order

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

Motivation

Starting point:

The Konishi operator

The Konishi operator OKonishi = trΦ2i

The same supermultiplet has representatives in the su(2) sectortrZ 2X 2 + . . .

Anomalous dimension has been computed up to 4 loops (g2 = λ16π2 )

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

� �� [F .Fiamberti,A.Santambrogio,C .Sieg ,D.Zanon]

+ . . .

(involves 139 supergraphs and 12 types of 4-loop integrals!)

Why is it interesting to compute the 4-loop part?

Qualitatively new effects appear on the gauge theory side – wrappinginteractionsFirst order which goes beyond the Bethe ansatzA very stringent test of our understanding of the worldsheet superstring QFTA computation from the string theory side will be a very nontrivial test ofAdS/CFT

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

Asymptotic Bethe Ansatz

Description through the Asymptotic Bethe Ansatz [Beisert,Staudacher]Has J = 2 and two excitations with opposite momenta. Length L = 4.Bethe equations

where e2iθ(p,−p) is the dressing factor and

u(p) =1

�1 + 16g2 sin2 p

This gives the solution for the momentum:

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

Plug the momenta p,−p into the dispersion relation:

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

∆ = 4 + 12g2 − 48g

4 + 336g6 + (−2496 + 576ζ(3)− 1440ζ(5)) g

+ . . .

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

eipL = Ssu(2)(p,−p)

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

eipL = Ssu(2)(p,−p)

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

ei4p =

2u(p) + i

2u(p)− ie

2iθ(p,−p)

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

ei4p =

2u(p) + i

2u(p)− ie

2iθ(p,−p)

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

ei4p =

2u(p) + i

2u(p)− ie

2iθ(p,−p)

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

ei4p =

2u(p) + i

2u(p)− ie

2iθ(p,−p)

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

ei4p =

2u(p) + i

2u(p)− ie

2iθ(p,−p)

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

ei4p =

2u(p) + i

2u(p)− ie

2iθ(p,−p)

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

ei4p =

2u(p) + i

2u(p)− ie

2iθ(p,−p)

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

ei4p =

2u(p) + i

2u(p)− ie

2iθ(p,−p)

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

ei4p =

2u(p) + i

2u(p)− ie

2iθ(p,−p)

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

The resulting anomalous dimension is

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

The result can be trusted only up to g2L−2 where L is the length of theoperator. For higher orders wrapping interactions contribute!In this case the result is valid up to 3-loop order (terms ∝ g6) which hasbeen verified perturbativelyWrapping:Asymptotic Bethe Ansatz incorporates all graphs of the type

but not

At 4-loops new contribution will arise:

∆ =∆ Bethe + ∆wrapping

The perturbative computation of [F.Fiamberti, A.Santambrogio, C.Sieg,D.Zanon] gives

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

ei4p =

2u(p) + i

2u(p)− ie

2iθ(p,−p)

u(p) =1

�1 + 16g2 sin2 p

p =2π

3−√

4 − 72√

3 + 8 · 9√

3ζ(3)

6 + . . .

∆Bethe = 2 + 2

�1 + 16g2 sin2 p

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

but not

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

but not

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

but not

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

but not

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

but not

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

but not

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

but not

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

but not

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

but not

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

but not

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

but not

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

but not

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∆Bethe = 4 + 12g2 − 48g

4 + 336g6 − (2820 + 288ζ(3))g8 + . . .

but not

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

How to compute wrapping interactions?

Within the spin chain point of view it is not clear how to incorporate wrappingeffects – e.g. for the Heisenberg XXX spin chain, Bethe ansatz is exact

Worldsheet QFT in principle provides a unique prescription how to describethese effects

The spectrum at finite J ≡ spectrum of the theory defined on a cylinder offixed size J (for the string in appropriate light cone gauge)

Suppose we know the theory exactly on the infinite plane:1 complete set of asymptotic states2 S-matrices for these states

How the spectrum changes when the theory is put on a cylinder?

For single particle states, universal formulas exist – first derived by Luscher

For (some) integrable relativistic QFT’s the complete exact finite sizespectrum is encoded in nonlinear integral equations

Luscher corrections

For relativistic theories, leading finite size effects arise due to virtualcorrections ‘encircling’ the cylinder

Universal expression in terms of the (infinite volume) S-matrix

Can be generalized to the AdS worldsheet theory (lack of relativisticinvariance!) [RJ,�Lukowski]

Apply this method to the case of the Konishi operator

Why is L = 4 large enough?

Can we derive similar formulas for multi-(two-)particle states?

Luscher corrections

One can estimate the magnitude of the finite size corrections

magnitude ∼ e−LETBA(pTBA)

where ETBA is obtained by space-time interchange ETBA = ip and pTBA = iE

and using the mass-shell condition E = E (p)We get the estimate: [Ambjorn,RJ,Kristjansen]

e−2L arcsinh

√1+q2

At strong coupling:

e−2L arcsinh

√1+q2

4g −→ e− L

2g = e− 2πL√

At weak coupling:

e−2L arcsinh

√1+q2

4g −→ 4Lg2L

(1 + q2)L

For Konishi operator we expect to get contributions at 4 loop order (L ∼ 4)

e−2L arcsinh

√1+q2

At strong coupling:

e−2L arcsinh

√1+q2

4g −→ e− L

2g = e− 2πL√

At weak coupling:

e−2L arcsinh

√1+q2

4g −→ 4Lg2L

(1 + q2)L

e−2L arcsinh

√1+q2

At strong coupling:

e−2L arcsinh

√1+q2

4g −→ e− L

2g = e− 2πL√

At weak coupling:

e−2L arcsinh

√1+q2

4g −→ 4Lg2L

(1 + q2)L

e−2L arcsinh

√1+q2

At strong coupling:

e−2L arcsinh

√1+q2

4g −→ e− L

2g = e− 2πL√

At weak coupling:

e−2L arcsinh

√1+q2

4g −→ 4Lg2L

(1 + q2)L

e−2L arcsinh

√1+q2

At strong coupling:

e−2L arcsinh

√1+q2

4g −→ e− L

2g = e− 2πL√

At weak coupling:

e−2L arcsinh

√1+q2

4g −→ 4Lg2L

(1 + q2)L

e−2L arcsinh

√1+q2

At strong coupling:

e−2L arcsinh

√1+q2

4g −→ e− L

2g = e− 2πL√

At weak coupling:

e−2L arcsinh

√1+q2

4g −→ 4Lg2L

(1 + q2)L

e−2L arcsinh

√1+q2

At strong coupling:

e−2L arcsinh

√1+q2

4g −→ e− L

2g = e− 2πL√

At weak coupling:

e−2L arcsinh

√1+q2

4g −→ 4Lg2L

(1 + q2)L

e−2L arcsinh

√1+q2

At strong coupling:

e−2L arcsinh

√1+q2

4g −→ e− L

2g = e− 2πL√

At weak coupling:

e−2L arcsinh

√1+q2

4g −→ 4Lg2L

(1 + q2)L

e−2L arcsinh

√1+q2

At strong coupling:

e−2L arcsinh

√1+q2

4g −→ e− L

2g = e− 2πL√

At weak coupling:

e−2L arcsinh

√1+q2

4g −→ 4Lg2L

(1 + q2)L

e−2L arcsinh

√1+q2

At strong coupling:

e−2L arcsinh

√1+q2

4g −→ e− L

2g = e− 2πL√

At weak coupling:

e−2L arcsinh

√1+q2

4g −→ 4Lg2L

(1 + q2)L

e−2L arcsinh

√1+q2

At strong coupling:

e−2L arcsinh

√1+q2

4g −→ e− L

2g = e− 2πL√

At weak coupling:

e−2L arcsinh

√1+q2

4g −→ 4Lg2L

(1 + q2)L

e−2L arcsinh

√1+q2

At strong coupling:

e−2L arcsinh

√1+q2

4g −→ e− L

2g = e− 2πL√

At weak coupling:

e−2L arcsinh

√1+q2

4g −→ 4Lg2L

(1 + q2)L

Luscher corrections for multiparticle states

Look at relativistic integrable theories solvable by the excited stateThermodynamic Bethe Ansatz (TBA) e.g. sinh-Gordon, SLYM

Answer given in terms of a nonlinear integral equation

Solve by iteration:

0th order −→ Bethe equations

1st order −→ two main effects:1 shift of the momenta {pi}2 a direct F-term like virtual contribution to the energy

3 in addition, residues of the above at possible poles...

Highly universal structure of the leading correction −→ generalize to AdScase

Solve by iteration:

For the Konishi at 4 loops only the F-term like expression contributes

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

What particles should circulate in the loop?fundamental magnonsQ-magnon bound statesTwo choices:

1 su(2) bound states – symmetric representation – physical in the original theory2 sl(2) bound states – antisymmetric representation – physical in the mirror

theory

Our conclusion is that sl(2) bound states should be used

Find SQ−1 S-matrix for Q > 2. . .

Solve by iteration:

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

∆E =−1

∞�

� ∞

−∞dq

�z−

�2 �

(−1)Fb�SQ−1(z

±, x±i )SQ−1(z±, x±ii )

�b(11)

theory

The above expression is of order g8 as expected from gauge theory

The integral over q can be carried out analytically by residues:

∞�

�− num(Q)

(9Q4 − 3Q2 + 1)4 (27Q6 − 27Q4 + 36Q2 + 16)+

Q3− 1440

num(Q) =7776Q(19683Q18 − 78732Q

16 + 150903Q14 − 134865Q

+ 1458Q10 + 48357Q

8 − 13311Q6 − 1053Q

4 + 369Q2 − 10)

Two last terms give at once 864 ζ(3)− 1440 ζ(5)

The remaining rational function remarkably sums up to an integer givingfinally

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Exactly agrees with the 4-loop perturbative computation of [F.Fiamberti,A.Santambrogio, C.Sieg and D.Zanon]

∞�

�− num(Q)

(9Q4 − 3Q2 + 1)4 (27Q6 − 27Q4 + 36Q2 + 16)+

Q3− 1440

num(Q) =7776Q(19683Q18 − 78732Q

16 + 150903Q14 − 134865Q

+ 1458Q10 + 48357Q

8 − 13311Q6 − 1053Q

4 + 369Q2 − 10)

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∞�

�− num(Q)

(9Q4 − 3Q2 + 1)4 (27Q6 − 27Q4 + 36Q2 + 16)+

Q3− 1440

num(Q) =7776Q(19683Q18 − 78732Q

16 + 150903Q14 − 134865Q

+ 1458Q10 + 48357Q

8 − 13311Q6 − 1053Q

4 + 369Q2 − 10)

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∞�

�− num(Q)

(9Q4 − 3Q2 + 1)4 (27Q6 − 27Q4 + 36Q2 + 16)+

Q3− 1440

num(Q) =7776Q(19683Q18 − 78732Q

16 + 150903Q14 − 134865Q

+ 1458Q10 + 48357Q

8 − 13311Q6 − 1053Q

4 + 369Q2 − 10)

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∞�

�− num(Q)

(9Q4 − 3Q2 + 1)4 (27Q6 − 27Q4 + 36Q2 + 16)+

Q3− 1440

num(Q) =7776Q(19683Q18 − 78732Q

16 + 150903Q14 − 134865Q

+ 1458Q10 + 48357Q

8 − 13311Q6 − 1053Q

4 + 369Q2 − 10)

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∞�

�− num(Q)

(9Q4 − 3Q2 + 1)4 (27Q6 − 27Q4 + 36Q2 + 16)+

Q3− 1440

num(Q) =7776Q(19683Q18 − 78732Q

16 + 150903Q14 − 134865Q

+ 1458Q10 + 48357Q

8 − 13311Q6 − 1053Q

4 + 369Q2 − 10)

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∞�

�− num(Q)

(9Q4 − 3Q2 + 1)4 (27Q6 − 27Q4 + 36Q2 + 16)+

Q3− 1440

num(Q) =7776Q(19683Q18 − 78732Q

16 + 150903Q14 − 134865Q

+ 1458Q10 + 48357Q

8 − 13311Q6 − 1053Q

4 + 369Q2 − 10)

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∞�

�− num(Q)

(9Q4 − 3Q2 + 1)4 (27Q6 − 27Q4 + 36Q2 + 16)+

Q3− 1440

num(Q) =7776Q(19683Q18 − 78732Q

16 + 150903Q14 − 134865Q

+ 1458Q10 + 48357Q

8 − 13311Q6 − 1053Q

4 + 369Q2 − 10)

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∞�

�− num(Q)

(9Q4 − 3Q2 + 1)4 (27Q6 − 27Q4 + 36Q2 + 16)+

Q3− 1440

num(Q) =7776Q(19683Q18 − 78732Q

16 + 150903Q14 − 134865Q

+ 1458Q10 + 48357Q

8 − 13311Q6 − 1053Q

4 + 369Q2 − 10)

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∞�

�− num(Q)

(9Q4 − 3Q2 + 1)4 (27Q6 − 27Q4 + 36Q2 + 16)+

Q3− 1440

num(Q) =7776Q(19683Q18 − 78732Q

16 + 150903Q14 − 134865Q

+ 1458Q10 + 48357Q

8 − 13311Q6 − 1053Q

4 + 369Q2 − 10)

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∞�

�− num(Q)

(9Q4 − 3Q2 + 1)4 (27Q6 − 27Q4 + 36Q2 + 16)+

Q3− 1440

num(Q) =7776Q(19683Q18 − 78732Q

16 + 150903Q14 − 134865Q

+ 1458Q10 + 48357Q

8 − 13311Q6 − 1053Q

4 + 369Q2 − 10)

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

∞�

�− num(Q)

(9Q4 − 3Q2 + 1)4 (27Q6 − 27Q4 + 36Q2 + 16)+

Q3− 1440

num(Q) =7776Q(19683Q18 − 78732Q

16 + 150903Q14 − 134865Q

+ 1458Q10 + 48357Q

8 − 13311Q6 − 1053Q

4 + 369Q2 − 10)

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Conclusions

The appearance of the transcendentality structure of

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

is far from obvious. A similar computation using su(2) bound states in thesymmetric representation leads to extremely complicated expressions

Finite size effects involve a loop integral over all states in the theory – thusthey form a nontrivial test of the completeness of the worldsheet theory

This is especially important at weak coupling, where e.g. all higher boundstates contribute equally

In particular, magnons and Q bound states seem to form a complete basis ofasymptotic states of the superstring worldsheet QFT (e.g. there does notseem to be a place for a composite structure of the magnons)

The computation of the finite size effects through Luscher corrections is of adistinctly (2D) quantum field theoretical nature

The agreement with the weak coupling perturbative gauge theory result is anextremely nontrivial test of AdS/CFT!

Conclusions

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Conclusions

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Conclusions

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Conclusions

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Conclusions

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Conclusions

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Conclusions

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Conclusions

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Conclusions

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Conclusions

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Conclusions

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Conclusions

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Conclusions

∆wrapping = (324 + 864ζ(3)− 1440ζ(5))g8

Four-loop perturbative Konishi from the AdS S5 string

Documents

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