Ideología y narrativa: la función significativa, el pensamiento estetizante y las relaciones humanas

This research deals with the study of ideology in the novel. Our motivation has philosophical implications and refers to fundamental and foundational issues of literary theory and aesthetics in general. Thus, the definition of the object of study for a correct formulation of these questions, as appropriate, represents the first difficulty of this research. The concept of ideology is of a problematic nature due to the polysemy of the term and the Marxist pejorative use associated to it. In our work, however, we understand ideology in a general and literal way: study and system of ideas. This research seeks to justify the study of ideology and its relevance in the investigation of narrative text as a system of ideas for understanding the world that determines the individual's relationship with it within the novel. The epistemological approach of our research relates the concept of ideology in terms of literary hermeneutics, critical theory, and dialogic criticism, linked trough the critical inquiry and the signifying function of ideology. Furthermore, the ideological representation of the signifying function in literary texts responds to aesthetic criteria, and therefore aesthetics constitutes the specificity of the methodological approach of this study. Bakhtińs essential text on literary theory, "The Problem of Content, Material and Form in Verbal Arts", allows us to develop an understanding of the literary phenomena based on the concept of aestheticided thought. The main references to establish the foundational criteria of our investigation based on the hermeneutic-aesthetic relationship are P. Ricoeur, M. Bakhtin, and J. Habermas...

Critical behavior of su(1|1) supersymmetric spin chains with long-range interactions

We introduce a general class of su(1|1) supersymmetric spin chains with long-range interactions which includes as particular cases the su(1|1) Inozemtsev (elliptic) and Haldane-Shastry chains, as well as the XX model. We show that this class of models can be fermionized with the help of the algebraic properties of the su(1|1) permutation operator and take advantage of this fact to analyze their quantum criticality when a chemical potential term is present in the Hamiltonian. We first study the low-energy excitations and the low-temperature behavior of the free energy, which coincides with that of a (1+1)-dimensional conformal field theory (CFT) with central charge c=1 when the chemical potential lies in the critical interval (0,E(π)), E(p) being the dispersion relation. We also analyze the von Neumann and Rényi ground state entanglement entropies, showing that they exhibit the logarithmic scaling with the size of the block of spins characteristic of a one-boson (1+1)-dimensional CFT. Our results thus show that the models under study are quantum critical when the chemical potential belongs to the critical interval, with central charge c=1. From the analysis of the fermion density at zero temperature, we also conclude that there is a quantum phase transition at both ends of the critical interval. This is further confirmed by the behavior of the fermion density at finite temperature, which is studied analytically (at low temperature), as well as numerically for the su(1|1) elliptic chain.