46 citations · 264 across the 26 of their papers we have counts for
26 papers
Bilinear-biquadratic spin-1 model in the Haldane and dimerized phases
Mykhailo V. Rakov, Michael Weyrauch
We study the low-lying spectrum of the bilinear-biquadratic Heisenberg model in the dimerized and Haldane phases using a tensor renormalization method. At the (Takhtajan-Babujian)…
Luttinger liquid parameters from tensor network data
Michael Weyrauch, Mykhailo V. Rakov
We study the XXZ Heisenberg model in a staggered magnetic field using the HOTRG tensor renormalization method. Built into the tensor representation of the XXZ model is the U(1) sym…
Spin-1/2 XXZ Heisenberg chain in a longitudinal magnetic field
Mykhailo V. Rakov, Michael Weyrauch
We study the XXZ Heisenberg model in a longitudinal magnetic field using a tensor renormalization method. Built into the tensor representation of the XXZ model is the U(1) symmetry…
Collective excitations and tunneling dynamics in long bosonic Josephson junctions
M. R. Momme, Y. M. Bidasyuk, M. Weyrauch
We investigate the low-energy dynamics of two coupled anisotropic Bose-Einstein condensates forming a long Josephson junction. The theoretical study is performed in the framework o…
Finite-temperature dynamics of a bosonic Josephson junction
Y. M. Bidasyuk, M. Weyrauch, M. Momme +1
In the framework of the stochastic projected Gross-Pitaevskii equation we investigate finite-temperature dynamics of a bosonic Josephson junction (BJJ) formed by a Bose-Einstein co…
Dimerization in ultracold spinor gases with Zeeman splitting
Michael Weyrauch, Mykhailo V. Rakov
Two recent publications report different boundaries for the dimerized phase of the bilinear-biquadratic spin-1 Heisenberg model with quadratic Zeeman effect. We address these discr…