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arXiv · 1603.00591

Removal of phase transition of the Chebyshev quadratic and thermodynamics of Hénon-like maps near the first bifurcation

Hiroki Takahasi
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Abstract

We treat a problem at the interface of dynamical systems and equilibrium statistical physics. It is well-known that the geometric pressure function $$t\in\mathbb R\mapsto \sup_μ\left\{h_μ(T_2)-t\int\log |dT_2(x)|dμ(x)\right\}$$ of the Chebyshev quadratic map $T_2(x)=1-2x^2$ $(x\in\mathbb R)$ is not differentiable at $t=-1$. We show that this phase transition can be "removed", by an arbitrarily small singular perturbation of the map $T_2$ into Hénon-like diffeomorphisms. A proof of this result relies on an elaboration of the well-known inducing techniques adapted to Hénon-like dynamics near the first bifurcation.

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Hiroki Takahasi. 2016-03-02. Removal of phase transition of the Chebyshev quadratic and thermodynamics of Hénon-like maps near the first bifurcation. https://doi.org/10.1007/s10955-016-1584-y

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