We perform a numerical study of the XY and Heisenberg models with the finite size real space renormalisation group method. We confirm the Berezinskii-Kosterlitz-Thouless picture for the XY model and provide strong evidence against a standard algebraic divergence of the correlation length. We also obtain the most accurate determination of the magnetic exponent. For the Heisenberg model, we find that the scaling law predicted by the asymptotic freedom property of the theory around zero bare coupling is fulfilled, indicating the absence of phase transitions at a non-zero temperature
A new formulation of the renormalization-group in real space, suitable for quantum spin systems is p...
We study the classical two-dimensional $\mathrm{RP^2}$ and Heisenberg models, using the Tensor-Netwo...
We consider the scaling limit of the two-dimensional Ising model, which gives a theory of a massive ...
We perform a numerical study of the XY and Heisenberg models with the finite size real space renorma...
We perform a numerical study of the XY and Heisenberg models with the finite size real space renorma...
We perform a numerical study of the XY and Heisenberg models with the finite size real space renorma...
We perform a numerical study of the XY and Heisenberg models with the finite size real space renorma...
The two-dimensional XY and Heisenberg models are studied with a quantum-mechanical generalization of...
The classical Heisenberg model has been solved in spatial d dimensins, exactly in d=1 and by the Mig...
Using renormalization group methods, we study the Heisenberg-Ising XYZ chain in an external magnetic...
This thesis present the recently theoretical and numerical results on 2D dissipative quantum XY mode...
In this paper we apply an analytical real-space renormalization group formulation which is based on ...
This thesis present the recently theoretical and numerical results on 2D dissipative quantum XY mode...
Using both mean field renormalization group (MFRG) and Surface-Bulk MFRG (SBMFRG), we study the cri...
A new formulation of the renormalization-group in real space, suitable for quantum spin systems is p...
A new formulation of the renormalization-group in real space, suitable for quantum spin systems is p...
We study the classical two-dimensional $\mathrm{RP^2}$ and Heisenberg models, using the Tensor-Netwo...
We consider the scaling limit of the two-dimensional Ising model, which gives a theory of a massive ...
We perform a numerical study of the XY and Heisenberg models with the finite size real space renorma...
We perform a numerical study of the XY and Heisenberg models with the finite size real space renorma...
We perform a numerical study of the XY and Heisenberg models with the finite size real space renorma...
We perform a numerical study of the XY and Heisenberg models with the finite size real space renorma...
The two-dimensional XY and Heisenberg models are studied with a quantum-mechanical generalization of...
The classical Heisenberg model has been solved in spatial d dimensins, exactly in d=1 and by the Mig...
Using renormalization group methods, we study the Heisenberg-Ising XYZ chain in an external magnetic...
This thesis present the recently theoretical and numerical results on 2D dissipative quantum XY mode...
In this paper we apply an analytical real-space renormalization group formulation which is based on ...
This thesis present the recently theoretical and numerical results on 2D dissipative quantum XY mode...
Using both mean field renormalization group (MFRG) and Surface-Bulk MFRG (SBMFRG), we study the cri...
A new formulation of the renormalization-group in real space, suitable for quantum spin systems is p...
A new formulation of the renormalization-group in real space, suitable for quantum spin systems is p...
We study the classical two-dimensional $\mathrm{RP^2}$ and Heisenberg models, using the Tensor-Netwo...
We consider the scaling limit of the two-dimensional Ising model, which gives a theory of a massive ...