Completeness and Nonclassicality of Coherent States for Generalized Oscillator Algebras

The purposes of this work are (1) to show that the appropriate generalizations of the oscillator algebra permit the construction of a wide set of nonlinear coherent states in unified form; and (2) to clarify the likely contradiction between the nonclassical properties of such nonlinear coherent states and the possibility of finding a classical analog for them since they are P-represented by a delta function. In (1) we prove that a class of nonlinear coherent states can be constructed to satisfy a closure relation that is expressed uniquely in terms of the Meijer G-function. This property automatically defines the delta distribution as the P-representation of such states. Then, in principle, there must be a classical analog for them. Among other examples, we construct a family of nonlinear coherent states for a representation of the su(1,1) Lie algebra that is realized as a deformation of the oscillator algebra. In (2), we use a beam splitter to show that the nonlinear coherent states exhibit properties like anti-bunching that prohibit a classical description for them. We also show that these states lack second order coherence. That is, although the P-representation of the nonlinear coherent states is a delta function, they are not full coherent. Therefore, the systems associated with the generalized oscillator algebras cannot be considered `classical' in the context of the quantum theory of optical coherence.Comment: 26 pages, 10 figures, minor changes, misprints correcte

Storytelling and Racial Identity: How First-Generation Students of Color Navigate Their Identities at Predominately White Institutions

Utilizing the Narrative Paradigm (Fisher, 1984) and thematic analysis (Braun & Clarke, 2006) the present study seeks to explore and further understand the ways in which first-generation students of color navigate, and thus make meaning, of their race and class identities at a Predominantly White Institution (PWI). Through qualitative interviews with 14 first-generation students of color (henceforth, FGSOC), themes that emerged included: (1) being used to “it”, (2) financial differences cause a clash with belonging, and (3) cultural spaces bring welcoming feelings. Findings were consistent with previous research regarding barriers faced by first-generation students of color. The current study adds to the growing body of research on intersectionality within the Communication discipline. Theoretical and practical implications are offered. Study limitations and directions for further research are discussed

Specification a model for study of biopolitics

Social work focused on intervention has generated models ranging from charity to the establishment of devices as public and social policies have crystallized in exclusion processes such as social issues, social domination, social suffering, loss the social bond and streamlining other. Discuss the scope and limits of social work as a device address to the management policies of the -Tecnopolític- communication and management of -Necropolític- emotions. Documental study with a selection of sources considering the keywords of exclusion, domination, suffering, tie and rationalization. Social Work as a device intervention should consider forms of state and government schemes to establish the scope and limits of social protection and social promotion. Social Work as interventional device could be oriented to the intercession, since in the framework of governance is necessary dialogue rather than imposition

Theoretical background to a curriculum design for Puerto Rican kindergarten students.

EducationDoctor of Education (Ed.D.

Specification a Model for Study of Intervention

The history of the intervention of Social Work in the area of health has been built from a device that in the case of the Institutions of Higher Education Social Sciences and Humanities this acquires a connotation of dispositivity in the Foucauldian sense of reproduction of social domination through the power of vigilance and punishment In this sense the objective of this work was to discuss the scope and limits of the positivity device for the case of Social Work and its history of intervention in public health institutions The discussion will allow us to move towards a reconceptualization scenario in which we see an alternative intervention device that not only reproduces health policies but also questions them in favor of the groups that are being violate