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- Foundation for Research and Technology HellasGR11 papers
- National Observatory of AthensGR9 papers
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- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR7 papers
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20 papers · 1 filter
Wang-Landau study of the triangular Blume-Capel ferromagnet
N. G. Fytas
We report on numerical simulations of the two-dimensional Blume-Capel ferromagnet embedded in the triangular lattice. The model is studied in both its first- and second-order phase…
On non-abelian T-dual geometries with Ramond fluxes
Konstadinos Sfetsos, Daniel C. Thompson
We show how to implement T-duality along non-abelian isometries in backgrounds with non-vanishing Ramond fields. When the dimension of the isometry group is odd (even) the duality…
The Non-Compact Weyl Equation
Anastasia Doikou, Theodora Ioannidou
A non-compact version of the Weyl equation is proposed, based on the infinite dimensional spin zero representation of the sl_2 algebra. Solutions of the aforementioned equation are…
Universality in disordered systems: The case of the three-dimensional random-bond Ising model
Nikolaos G. Fytas, Panagiotis E. Theodorakis
We study the critical behavior of the Ising model with bond randomness through extensive Monte Carlo simulations and finite-size scaling techniques. Our results indicate that…
Microphase separation in linear multiblock copolymers under poor solvent conditions
Panagiotis E. Theodorakis, Nikolaos G. Fytas
Molecular dynamics simulations are used to study the phase behavior of linear multiblock copolymers with two types of monomers, A and B, where the length of the polymer blocks $N_{…
The Ricci flow approach to homogeneous Einstein metrics on flag manifolds
Stavros Anastassiou, Ioannis Chrysikos
We give the global picture of the normalized Ricci flow on generalized flag manifolds with two or three isotropy summands. The normalized Ricci flow for these spaces descents to a…