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- Oliver Dewolfe, Nelia Mann
- 2004

We demonstrate that the one-loop dilatation generator for the scalar sector of a certain perturbation of N = 4 Super Yang-Mills with fundamentals is the Hamiltonian of an integrable spin chain with open boundary conditions. The theory is a supersymmetric defect conformal field theory (dCFT) with the fundamentals in hypermultiplets confined to a codimension… (More)

We study an integrable conformal OSp(2m+2|2m) supercoset model as an analog to the AdS5 × S5 superstring world-sheet theory. Using the known S-matrix for this system, we obtain integral equations for states of large particle number in an SU(2) sector, which are exact in the sigma model coupling constant. As a check, we derive as a limit the general… (More)

We study states of large charge density in integrable conformal coset models. For the O(2) coset, we consider two different S-matrices, one corresponding to a Thirring mass perturbation and the other to the continuation to O(2+ ). The former leads to simplification in the conformal limit; the latter gives a more complicated description of the O(2) system,… (More)

We demonstrate that the one-loop anomalous dimension matrix in N = 2 SYMwith a single chiral hypermultiplet of fundamental matter, which is dual to AdS5×S with a D7-brane filling AdS5 and wrapped around an S 3 in the S5, is an integrable open spin chain Hamiltonian. We also use the doubling trick to relate these open spin chains to closed spin chains in… (More)

We present a calculation of the four-loop anomalous dimension of the SU(2) sector Konishi operator in N = 4 SYM, as an example of “wrapping” corrections to the known result for long operators. We use the known dilatation operator at four loops acting on long operator, and just calculate those diagrams which are affected by the change from operator length L… (More)

We present a simple procedure to construct non-local conserved charges for classical open strings on coset spaces. This is done by including suitable reflection matrices on the classical transfer matrix. The reflection matrices must obey certain conditions for the charges to be conserved and in involution. We then study bosonic open strings on AdS5×S. We… (More)

- Nelia Mann
- 2006

We explore the relationship between the SU(2) sector of a general integrable field theory and the all-loop guess for the anomalous dimensions of SU(2) operators in N = 4 super Yang-Mills theory. We demonstrate that the SU(2) structure of a nested Bethe ansatz alone reproduces much of the all-loop guess without depending on the details of the particular… (More)

- Nelia Mann, Write Back, Ernst Mutschler
- Archiv der Pharmazie
- 1973

- Nelia Mann, Ernst Mutschler
- Archiv der Pharmazie
- 1976

- Nelia Mann
- 2008

We study the holographic description of string theory in a plane wave spacetime by taking the Penrose limit of the usual AdS/CFT correspondence. We consider three-point functions with two BMN operators and one non-BMN operator; the latter should go over to a perturbation of the dual CFT. On the string side we take the Penrose limit of the metric… (More)