Zobrazeno 1 - 10
of 462
pro vyhledávání: '"Rams, M."'
For an open and dense subset of elliptic ${\rm SL}(2,\mathbb R)$ matrix cocycles, we construct a family of loosely Bernoulli ergodic measures with zero top Lyapunov exponent. This provides a counterpart to a classical result by Furstenberg. The const
Externí odkaz:
http://arxiv.org/abs/2311.09351
We consider skew-products with concave interval fiber maps over a certain subshift obtained as the projection of orbits staying in a given region. It generates a new type of (essentially) coded shift. The fiber maps have expanding and contracting reg
Externí odkaz:
http://arxiv.org/abs/2004.06742
Thermodynamic and transport properties of Sr$_{1-x}$Ca$_x$RuO$_3$ with a calcium concentration $x \geq 0.8$ were investigated at low temperatures and in external magnetic field. The investgations revealed a Landau Fermi liquid (LFL) behaviour charact
Externí odkaz:
http://arxiv.org/abs/1806.03923
We study transitive step skew-product maps modeled over a complete shift of $k$, $k\ge2$, symbols whose fiber maps are defined on the circle and have intermingled contracting and expanding regions. These dynamics are genuinely nonhyperbolic and exhib
Externí odkaz:
http://arxiv.org/abs/1602.06845
Autor:
Zauner, V., Draxler, D., Vanderstraeten, L., Degroote, M., Haegeman, J., Rams, M. M., Stojevic, V., Schuch, N., Verstraete, F.
Publikováno v:
New J. Phys. 17 (2015) 053002
We investigate the relation between static correlation functions in the ground state of local quantum many-body Hamiltonians and the dispersion relations of the corresponding low energy excitations using the formalism of tensor network states. In par
Externí odkaz:
http://arxiv.org/abs/1408.5140
We study phase transitions for the topological pressure of geometric potentials of transitive sets. The sets considered are partially hyperbolic having a step skew product dynamics over a horseshoe with one-dimensional fibers corresponding to the cen
Externí odkaz:
http://arxiv.org/abs/1303.0581
Publikováno v:
Proc. Edinb. Math. Soc. (2) 55 (2012), no. 2, 311--331
We study dimensional properties of visible parts of fractal percolation in the plane. Provided that the dimension of the fractal percolation is at least 1, we show that, conditioned on non-extinction, almost surely all visible parts from lines are 1-
Externí odkaz:
http://arxiv.org/abs/0911.3931
Autor:
Gelfert, K., Rams, M.
We describe the geometric and dynamical properties of expansive Markov systems.
Comment: 22 pages, 1 figure; Replaced with revised version, Accepted for publication in Trans. Amer. Math. Soc
Comment: 22 pages, 1 figure; Replaced with revised version, Accepted for publication in Trans. Amer. Math. Soc
Externí odkaz:
http://arxiv.org/abs/0705.1040
Publikováno v:
Eur. Phys. J B 33 (2003) 173-181
Using 170-Yb and 155-Gd Mossbauer measurements down to 0.03K, we have examined the semiconducting pyrochlore Yb2Mo2O7 where the Mo intra-sublattice interaction is anti-ferromagnetic and the metallic pyrochlore Gd2Mo2O7 where this interaction is ferro
Externí odkaz:
http://arxiv.org/abs/cond-mat/0307677
Publikováno v:
J. Phys.: Condens. Matter 15 (2003) 4631-4639
In the garnet structure compound Yb3Ga5O12, the Yb3+ ions (ground state effective spin S' = 1/2) are situated on two interpenetrating corner sharing triangular sublattices such that frustrated magnetic interactions are possible. Previous specific hea
Externí odkaz:
http://arxiv.org/abs/cond-mat/0307676