71 citations · 374 across the 28 of their papers we have counts for
28 papers
Confinement in the three-state Potts quantum spin chain in extreme ferromagnetic limit
Anna Krasznai, Sergei Rutkevich, Gábor Takács
We investigate the dynamics of the three-state Potts quantum spin chain in the extreme ferromagnetic limit using a perturbative expansion in the transverse magnetic field. We demon…
Soliton confinement in the double sine-Gordon model
S. B. Rutkevich
The double sine-Gordon field theory in the weak confinement regime is studied. It represents the small non-integrable deformation of the standard sine-Gordon model caused by the co…
Confinement of spinons in the XXZ spin-1/2 chain in presence of the transverse magnetic field
S. B. Rutkevich
We study the tuning effect of a transverse magnetic field on the confinement of spinons in the infinite XXZ spin-1/2 chain. The spinon confinement in this model takes place in the…
Spinon confinement in the gapped antiferromagnetic XXZ spin-1/2 chain
S. B. Rutkevich
The infinite Heisenberg XXZ spin-(1/2) chain in the gapped antiferromagnetic regime has two degenerate vacua and kink topological excitations (which are also called spinons) interp…
On the ground-state energy of the finite sine-Gordon ring
S. B. Rutkevich
The Casimir scaling function characterising the ground-state energy of the sine-Gordon model in a finite circle has been studied analytically and numerically both in the repulsive…
Scaling in the massive antiferromagnetic XXZ spin-1/2 chain near the isotropic point
S. B. Rutkevich
The scaling limit of the Heisenberg XXZ spin chain at zero magnetic field is studied in the gapped antiferromagnetic phase. For a spin-chain ring having sites, the universal…