191 citations · 613 across the 14 of their papers we have counts for
14 papers
Norm minimized Scattering Data from Intensity Spectra
A. Seel, A. Davtyan, U. Pietsch +1
We apply the minimizing technique of compressive sensing (CS) to non-linear quadratic observations. For the example of coherent X-ray scattering we provide the formulae for a…
The Staggered Six-Vertex Model: Conformal Invariance and Corrections to Scaling
Holger Frahm, Alexander Seel
We study the emergence of non-compact degrees of freedom in the low energy effective theory for a class of -staggered six-vertex models. In the finite size spectrum o…
Functional Bethe ansatz methods for the open XXX chain
Holger Frahm, Jan H. Grelik, Alexander Seel +1
We study the spectrum of the integrable open XXX Heisenberg spin chain subject to non-diagonal boundary magnetic fields. The spectral problem for this model can be formulated in te…
Correlation functions of the integrable isotropic spin-1 chain at finite temperature
Frank Göhmann, Alexander Seel, Junji Suzuki
We represent the density matrix of a finite segment of the integrable isotropic spin-1 chain in the thermodynamic limit as a multiple integral. Our integral formula is valid at fin…
Non-linear Integral Equations and Determinant Formulae of the Open XXZ Spin Chain
A. Seel, T. Wirth
We derive a non-linear integral equation for the Bethe-ansatz solvable open XXZ spin chain of arbitrary length describing the lowest lying state with zero magnetization. For this c…
Separation of Variables in the open XXX chain
H. Frahm, A. Seel, T. Wirth
We apply the Sklyanin method of separation of variables to the reflection algebra underlying the open spin-1/2 XXX chain with non-diagonal boundary fields. The spectral problem can…