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pro vyhledávání: '"Feverati, Giovanni"'
Autor:
Feverati, Giovanni
Les systèmes intégrables quantiques ont des propriétés mathématiques qui permettent la détermination exacte de leur spectre énergétique. A partir des équations de Bethe, je présente la relation de Baxter «T-Q». Celle-ci est à l'origine d
Externí odkaz:
http://tel.archives-ouvertes.fr/tel-00557526
http://tel.archives-ouvertes.fr/docs/00/55/75/26/PDF/master_hdr.pdf
http://tel.archives-ouvertes.fr/docs/00/55/75/26/PDF/master_hdr.pdf
Autor:
Musso, Fabio, Feverati, Giovanni
Publikováno v:
BioSystems 107 (2012) 18-33
We investigate the mutation-selection dynamics for an evolutionary computation model based on Turing Machines that we introduced in a previous article. The use of Turing Machines allows for very simple mechanisms of code growth and code activation/in
Externí odkaz:
http://arxiv.org/abs/1101.3887
Autor:
Feverati, Giovanni
Quantum integrable systems have very strong mathematical properties that allow an exact description of their energetic spectrum. From the Bethe equations, I formulate the Baxter "T-Q" relation, that is the starting point of two complementary approach
Externí odkaz:
http://arxiv.org/abs/1101.3722
Publikováno v:
Int.J.Mod.Phys.A25:3307-3351,2010
In this article we review the basic concepts regarding quantum integrability. Special emphasis is given on the algebraic content of integrable models. The associated algebras are essentially described by the Yang-Baxter and boundary Yang-Baxter equat
Externí odkaz:
http://arxiv.org/abs/0912.3350
Publikováno v:
J.Stat.Mech.0910:P10013,2009
We consider the physical combinatorics of critical lattice models and their associated conformal field theories arising in the continuum scaling limit. As examples, we consider A-type unitary minimal models and the level-1 sl(2) Wess-Zumino-Witten (W
Externí odkaz:
http://arxiv.org/abs/0903.0510
We construct the XX and Hubbard-like models based on unitary superalgebras gl(N|M) generalizing Shastry's and Maassarani's approach. We introduce the R-matrix of the gl(N|M) XX-type model; the one of the Hubbard-like model is defined by "coupling" tw
Externí odkaz:
http://arxiv.org/abs/0712.1940
Autor:
Feverati, Giovanni, Musso, Fabio
The development of a large non-coding fraction in eukaryotic DNA and the phenomenon of the code-bloat in the field of evolutionary computations show a striking similarity. This seems to suggest that (in the presence of mechanisms of code growth) the
Externí odkaz:
http://arxiv.org/abs/0711.3580
We discuss the errors introduced by level truncation in the study of boundary renormalisation group flows by the Truncated Conformal Space Approach. We show that the TCSA results can have the qualitative form of a sequence of RG flows between differe
Externí odkaz:
http://arxiv.org/abs/hep-th/0612203
Publikováno v:
J.Stat.Mech.0702:P02001,2007
As the Hubbard energy at half filling is believed to reproduce at strong coupling (part of) the all loop expansion of the dimensions in the SU(2) sector of the planar $ {\cal N}=4$ SYM, we compute an exact non-perturbative expression for it. For this
Externí odkaz:
http://arxiv.org/abs/hep-th/0611186
Publikováno v:
JHEP 0605:068,2006
Non-linear integral equations derived from Bethe Ansatz are used to evaluate finite size corrections to the highest (i.e. {\it anti-ferromagnetic}) and immediately lower anomalous dimensions of scalar operators in ${\cal N}=4$ SYM. In specific, multi
Externí odkaz:
http://arxiv.org/abs/hep-th/0602189