Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Hervé Kunz"'
Autor:
Boris Shapiro, Hervé Kunz
Publikováno v:
Journal of Physics A: Mathematical and General. 39:10155-10160
We study the average density of resonances, $$, in a semi-infinite disordered chain coupled to a perfect lead. The function $$ is defined in the complex energy plane and the distance $y$ from the real axes determines the resonance width. We concentra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a27ddad91784f1b86f70b3bb9c486473
https://doi.org/10.1088/0305-4470/39/32/s16
https://doi.org/10.1088/0305-4470/39/32/s16
Autor:
Hervé Kunz, Nils Berglund
Publikováno v:
Journal of Physics A: Mathematical and General. 32:15-39
This article deals with dynamical systems depending on a slowly varying parameter. We present several physical examples illustrating memory effects, such as metastability and hysteresis, which frequently appear in these systems. A mathematical theory
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d476902ecc9d353fb26c7b4b655ab7b
https://doi.org/10.1088/0305-4470/32/1/005
https://doi.org/10.1088/0305-4470/32/1/005
Autor:
Hervé Kunz
Publikováno v:
Journal of Physics A: Mathematical and General. 32:2171-2182
We determine the probability distribution of the spectral form factor from random matrix theory in the orthogonal and unitary case. We show that it is an exponential one, parametrized by the average value of this quantity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b1b5f1f5710bc361f5a0744350052fb
https://doi.org/10.1088/0305-4470/32/11/011
https://doi.org/10.1088/0305-4470/32/11/011
Autor:
Hervé Kunz, Nils Berglund
Publikováno v:
Scopus-Elsevier
We consider classical billiards in plane, connected, but not necessarily bounded domains. The charged billiard ball is immersed in a homogeneous, stationary magnetic field perpendicular to the plane. The part of dynamics which is not trivially integr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e06b1136f62461a73934cbcfea89a2f8
https://doi.org/10.1007/bf02183641
https://doi.org/10.1007/bf02183641
Autor:
Hervé Kunz, Roberto Livi
We present a precise equivalence of the Lifson-Poland-Scheraga model with wetting models. Making use of a representation of the former model in terms of random matrices, we obtain, in the limit of weak disorder, a mean--field approximation, that show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f23af5398bfb9082bc271c20f636d0c
Autor:
Hervé Kunz
Publikováno v:
Journal of Statistical Physics. 76:183-207
We compute the surface correction to the density of states of a particle in a convex box subjected to a magnetic field. Applying these results to orbital magnetism, we find that at high temperatures or weak magnetic fields the surface magnetization i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06ab16023cee3827a1b2369206d4459b
https://doi.org/10.1007/bf02188660
https://doi.org/10.1007/bf02188660
Autor:
Rico Rueedi, Hervé Kunz
We compute the ground state energy of atoms and quantum dots with a large number N of electrons. Both systems are described by a non-relativistic Hamiltonian of electrons in a d-dimensional space. The electrons interact via the Coulomb potential. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e84d13d10f127efc0e4f861b81743dc
http://arxiv.org/abs/0912.4463
http://arxiv.org/abs/0912.4463
Autor:
Bernard Souillard, Hervé Kunz
Publikováno v:
Mathematical Problems in Theoretical Physics ISBN: 9783540099642
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92666a9e2e1ef002817961d666175334
https://doi.org/10.1007/3-540-09964-6_306
https://doi.org/10.1007/3-540-09964-6_306
Thermodynamical properties of the helix-coil transition were successfully described in the past by the model of Lifson, Poland and Sheraga. Here we compute the corresponding structure factor and show that it possesses a universal scaling behavior nea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::248797d6a6a4f503eb52f73a588b505c
http://arxiv.org/abs/cond-mat/0701405
http://arxiv.org/abs/cond-mat/0701405
We give a method to compute the smooth part of the density of states in a semi-classical expansion, when the Hamiltonian contains a Coulomb potential and non-cartesian coordinates are appropriate. We apply this method to the case of the hydrogen atom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::889898510800256cf930b03f7247e13c