Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Miguel Angel Virasoro"'
Autor:
R. Baviera, Miguel Angel Virasoro
In the study of disordered models like spin glasses the key object of interest is the rugged energy hypersurface defined in configuration space. The statistical mechanics calculation of the Gibbs–Boltzmann partition function gives the information n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b47b1ceb05ceb61c02a3a458b7292188
http://arxiv.org/abs/1508.01232
http://arxiv.org/abs/1508.01232
Autor:
Miguel Angel Virasoro
Publikováno v:
International Journal of Modern Physics A. 32:1741002
Abdus Salam was a great man in more than one dimension. The conception and building of the ICTP system required much more than the intelligence of a great scientist. I will stress those other facets that made him such a unique personality: the optimi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::977feb341d65bec7798950915eeefdaa
https://doi.org/10.1142/s0217751x17410020
https://doi.org/10.1142/s0217751x17410020
Publikováno v:
Journal de Physique I. 4:1819-1827
We study the replica free energy surface for a spin glass model near the glassy temperature. In this model the simplicity of the equilibrium solution hides non trivial metastable saddle points. By means of the stability analysis performed for one and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce37d1e4a506af44b1c76b44f45cafac
https://doi.org/10.1051/jp1:1994109
https://doi.org/10.1051/jp1:1994109
Autor:
Miguel Angel Virasoro
Publikováno v:
Proceedings of Quarks, Strings and the Cosmos - Héctor Rubinstein Memorial Symposium — PoS(HRMS).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccae21675a1bb7fd90627003daf8a3b7
https://doi.org/10.22323/1.109.0019
https://doi.org/10.22323/1.109.0019
Publikováno v:
Journal de Physique I. 3:1819-1838
In the context of the p-spin spherical model we show how saddle points of the n - 0 replica free energy surface can be interpreted as metastable states or barriers.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::371921b2ba061d84389e54a9ee52b649
https://doi.org/10.1051/jp1:1993217
https://doi.org/10.1051/jp1:1993217
Publikováno v:
Europhysics Letters (EPL). 22:405-411
We apply the technique introduced in a previous paper, to study the violation of ultrametricity in a Spin Glass model. We consider 3 real replicas of a Spin Glass near the glassy temperature, constrained in such a way that their overlaps violate ultr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38971aee30dded178d63bd78fb787ace
https://doi.org/10.1209/0295-5075/22/6/002
https://doi.org/10.1209/0295-5075/22/6/002
In this note we introduce a method to calculate the finite volume corrections to the mean field results for the free energy when replica symmetry is broken at one-step. We find that the naive results are modified by the presence of additional correct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6921e42602d5f458b7d309c805296c0c
http://hdl.handle.net/11573/6458
http://hdl.handle.net/11573/6458
Publikováno v:
Europhysics Letters (EPL). 17:5-9
In order to study the limits of validity of ultrametricity we imagine a system composed of two SK models weakly coupled among themselves. For this case one assumes, as usual, that each one of them separately obeys ultrametricity while it is an open q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf3d8c2b78764d8569245ee8a6a9e8eb
https://doi.org/10.1209/0295-5075/17/1/002
https://doi.org/10.1209/0295-5075/17/1/002
Publikováno v:
Journal de Physique. 51:387-408
We display a synaptic matrix that can efficiently store, in attractor neural networks (AMN) and perceptrons, patterns organized in uncorrelated classes. We find a storage capacity limit increasing with m, the overlap of a pattern with its class ances
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a19bb8a61f97faee5578c9f550275bed
https://doi.org/10.1051/jphys:01990005105038700
https://doi.org/10.1051/jphys:01990005105038700
Autor:
Miguel Angel Virasoro
Publikováno v:
Lecture Notes in Physics ISBN: 9783540742326
The historical path leading to the so-called Virasoro algebra is recalled, and the associated physical context is briefly discussed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7154ea26b944fd5a19dd661ce641a806
https://doi.org/10.1007/978-3-540-74233-3_6
https://doi.org/10.1007/978-3-540-74233-3_6