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U.S. Congress and the invisibility of coloniality: The case of Puerto Rico's political status revisited
Carmen R. Lugo-Lugo
Centro Journal , 2006,
Abstract: By establishing the dangerous limitations of postcolonial theory, this essay explores the invisibility of Puerto Rico′s colonial status. Mainly, it argues that postcolonial theory has enabled U.S. Congress to keep Puerto Rico as a territory. Using selected quotes from the last three Congressional Hearings on the status of the island, this paper illustrates two basic patterns by which this is done: by employing rhetoric of a caring and compassionate democracy and by employing a tied hands and loose mouths approach. The paper concludes that in order to decolonize a territory like Puerto Rico, modifying a political status alone is not enough if other colonial aspects remain in place
Rese a de "Mainland Passage: The Cultural Anomaly of Puerto Rico" de Ramón E. Soto-Crespo
Carmen R. Lugo-Lugo
Centro Journal , 2010,
Abstract:
Post-9/11 Discourses Of Threat And Constructions Of Terror In The Age Of Obama
Mary K. Bloodsworth-Lugo,Carmen R. Lugo-Lugo
Altre Modernità , 2011,
Abstract: We argue elsewhere (Bloodsworth-Lugo and Lugo-Lugo, 2010) that the G.W. Bush years displayed a consistent merger of discourse surrounding otherwise unrelated issues (for example, terrorism, Saddam Hussein, September 11, 2001, immigration, same-sex marriage). This discourse served to construct and intertwine conceived international and domestic “terrorist” threats. During Barack Obama’s campaign for the U.S presidency, post-9/11 American anxieties worked to render Obama himself into a threatening body through questions concerning his middle name (Hussein), his perceived religious affiliation, and his patriotism and citizenship. In the present paper, we argue that the post-9/11 language of “us versus them” (“Either you are with us, or you are with the terrorists” [Bush 2001]), delivered to the American public and international community to garner consent in the wake of the September 11, 2001 events, and transformed into public policy for the remainder of the G.W. Bush presidency, provided a lens through which Americans would continue to construct and perceive the world beyond the Bush administration. Ideology surrounding “the War on Terror,” in particular, has either been resisted or co-opted and deployed by social agents in the aftermath of September 11, 2001. We claim that in the age of Obama, Bush-generated discourse and ideology has been activated to continue and advance policies and practices aimed at identifying and containing “terrorist” threats.
Exact monopole instantons and cosmological solutions in string theory from abelian dimensional reduction
Adrian R. Lugo
Physics , 1996, DOI: 10.1103/PhysRevD.55.6394
Abstract: We compute the exact string vacuum backgrounds corresponding to the non-compact coset theory $SU(2,1)/SU(2)$. The conformal field theory defined by the level $k= 4$ results in a five dimensional singular solution that factorizes in an asymptotic region as the linear dilaton solution and a $S^3$ model. It presents two abelian compact isometries that allow to reinterpreting it from a four dimensional point of view as a stationary and magnetically charged space-time resembling in some aspects the Kerr-Newman solution of general relativity. The $k=\frac{13}{7}$ theory on the other hand describes a cosmological solution that interpolates between a singular phase at short times and a $S^1 \times S^2$ universe after some planckian times.
Non linear realizations of isometry groups, conformal algebras and geodesics in Anti-de Sitter like spaces
Adrian R. Lugo
Physics , 1999,
Abstract: We present the explicit global realization of the isometries of anti-de Sitter like spaces of signature $(d_-,d_+)$, and their algebras in the space of functions on the pseudo-Riemannian symmetric space $SO(d_- +1,d_+) / SO(d_-,d_+)$. The process of going to the invariant boundaries leads to the realization of the corresponding conformal groups and algebras. We compute systematically the geodesics in these spaces by considering the coset representation of them.
Non standard parametrizations and adjoint invariants of classical groups
Adrian R. Lugo
Physics , 1999, DOI: 10.1016/S0370-2693(99)00936-3
Abstract: We obtain local parametrizations of classical non-compact Lie groups where adjoint invariants under maximal compact subgroups are manifest. Extension to non compact subgroups is straightforward. As a by-product parametrizations of the same type are obtained for compact groups. They are of physical interest in any theory gauge invariant under the adjoint action, typical examples being the two dimensional gauged Wess-Zumino-Witten-Novikov models where these coordinatizations become of extreme usefulness to get the background fields representing the vacuum expectation values of the massless modes of the associated (super) string theory.
Gravitational instantons and black plane solutions in 4-d string theory
Adriá n R. Lugo
Physics , 1994, DOI: 10.1103/PhysRevD.52.2266
Abstract: We consider gauged Wess-Zumino models based on the non compact group $SU(2,1)$. It is shown that by vector gauging the maximal compact subgroup $U(2)$ the resulting backgrounds obey the gravity-dilaton one loop string vacuum equations of motion in four dimensional euclidean space. The torsionless solution is then interpreted as a pseudo-instanton of the $d=4$ Liouville theory coupled to gravity. The presence of a traslational isometry in the model allows to get another string vacuum backgrounds by using target duality that we identify with those corresponding to the axial gauging. We also compute the exact backgrounds. Depending on the value of $k$, they may be interpreted as instantons connecting a highly singular big bang like universe with a static singular or regular black plane geometry.
SO(3) \times U(1) isometric instantons with non abelian hair in four dimensional string theory
Adrian R. Lugo
Physics , 1997, DOI: 10.1142/S0217732397001886
Abstract: We compute the exact effective string vacuum backgrounds of the level $k = 81/19 SU(2,1)/U(1)$ coset model. A compact SU(2) isometry present in this seven dimensional solution allows to interpreting it after compactification as a four dimensional non-abelian SU(2) charged instanton with a singular submanifold and an $SO(3) \times U(1)$ isometry. The semiclassical backgrounds, solutions of the type II strings, present similar characteristics.
Comments on Gauged WZW Models
Adrian R. Lugo
Physics , 1992,
Abstract: Some remarks are made about free anomaly groups in gauged WZW models. Considering a quite general action, anomaly cancellation is analyzed. The possibility of gauging left and right sectors independently in some cases is remarked. In particular Toda theories can be seen as such a kind of models.
On supersymmetric $Dp - \bar D p$ brane solutions
Adrián R. Lugo
Physics , 2002, DOI: 10.1016/S0370-2693(02)02065-8
Abstract: We analyze in the spirit of hep-th/0110039 the possible existence of supersymmetric $D p - \bar D p$ brane systems in flat ten dimensional Minkowski space. For $p=3,4$ we show that besides the solutions related by T-duality to the $D2 - \bar D 2$ systems found by Bak and Karch there exist other ansatz whose compatibility is shown from general arguments and that preserve also eight supercharges, in particular a $D4 - \bar D4$ system with D2-branes dissolved on it and Taub-NUT charge. We carry out the explicit construction in Weyl basis of the corresponding Killing spinors and conjecture the existence of new solutions for higher dimensional branes with some compact directions analogous to the supertube recently found.
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