scholarly journals Refinements of the Weyl Pure Geometrical Thick Branes From Information-Entropic Measure

2017 ◽  
Vol 530 (7) ◽  
pp. 1700188 ◽  
Author(s):  
Rafael Augusto Couceiro Correa ◽  
Davi Monteiro Dantas ◽  
Pedro Henrique Ribeiro da Silva Moraes ◽  
Alvaro de Souza Dutra ◽  
Carlos Alberto Santos de Almeida
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Gianluca Teza ◽  
Michele Caraglio ◽  
Attilio L. Stella

AbstractWe show how the Shannon entropy function can be used as a basis to set up complexity measures weighting the economic efficiency of countries and the specialization of products beyond bare diversification. This entropy function guarantees the existence of a fixed point which is rapidly reached by an iterative scheme converging to our self-consistent measures. Our approach naturally allows to decompose into inter-sectorial and intra-sectorial contributions the country competitivity measure if products are partitioned into larger categories. Besides outlining the technical features and advantages of the method, we describe a wide range of results arising from the analysis of the obtained rankings and we benchmark these observations against those established with other economical parameters. These comparisons allow to partition countries and products into various main typologies, with well-revealed characterizing features. Our methods have wide applicability to general problems of ranking in bipartite networks.


2011 ◽  
Vol 84 (4) ◽  
Author(s):  
Chun-E Fu ◽  
Yu-Xiao Liu ◽  
Heng Guo
Keyword(s):  

2010 ◽  
Vol 693 (4) ◽  
pp. 503-508 ◽  
Author(s):  
G. Alencar ◽  
R.R. Landim ◽  
M.O. Tahim ◽  
C.R. Muniz ◽  
R.N. Costa Filho

2008 ◽  
Vol 41 (21) ◽  
pp. 212004 ◽  
Author(s):  
C Adam ◽  
N Grandi ◽  
J Sánchez-Guillén ◽  
A Wereszczyński
Keyword(s):  

2009 ◽  
Vol 24 (25) ◽  
pp. 2005-2011
Author(s):  
LI-JIE ZHANG ◽  
SHAO-FENG WU ◽  
GUO-HONG YANG

The localization of the spin-3/2 gravitino field on thick branes with a Yukawa coupling is studied in this paper. We show that, for spin-3/2 fermionic field, there exist normalizable zero modes which can be localized on the flat thick branes under certain conditions.


Author(s):  
Carlos A. Vaquera-Araujo ◽  
Olindo Corradini

2015 ◽  
Vol 24 (11) ◽  
pp. 1550089 ◽  
Author(s):  
G. P. de Brito ◽  
J. M. Hoff da Silva ◽  
P. Michel L. T. da Silva ◽  
A. de Souza Dutra

In this paper, it is shown that the consideration of the braneworld consistency conditions within the framework of bulk modified gravities allows for the existence of thick branes in the five-dimensional case with compact extra dimension. On studying the specific consistency conditions in the Brans–Dicke gravity, we were able to show that the brane generating scalar field potential is relevant for relaxing the gravitational constraints.


Author(s):  
VIACHESLAV P. BELAVKIN ◽  
MASANORI OHYA

Quantum entanglements, describing truly quantum couplings, are studied and classified for discrete compound states. We show that classical-quantum correspondences such as quantum encodings can be treated as d-entanglements leading to a special class of separable compound states. The mutual information for the d-compound and for q-compound (entangled) states leads to two different types of entropies for a given quantum state. The first one is the von Neumann entropy, which is achieved as the supremum of the information over all d-entanglements, and the second one is the dimensional entropy, which is achieved at the standard entanglement, the true quantum entanglement, coinciding with a d-entanglement only in the commutative case. The q-conditional entropy and q-capacity of a quantum noiseless channel, defined as the supremum over all entanglements, is given as the logarithm of the dimensionality of the input von Neumann algebra. It can double the classical capacity, achieved as the supremum over all semiquantum couplings (d-entanglements, or encodings), which is bounded by the logarithm of the dimensionality of a maximal Abelian subalgebra. The entropic measure for essential entanglement is introduced.


2009 ◽  
Vol 2009 (10) ◽  
pp. 091-091 ◽  
Author(s):  
Yu-Xiao Liu ◽  
Hai-Tao Li ◽  
Zhen-Hua Zhao ◽  
Jing-Xin Li ◽  
Ji-Rong Ren
Keyword(s):  

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