Proof of the universal density of charged states in QFT

We prove a recent conjecture by Harlow and Ooguri concerning a universal formula for the charged density of states in QFT at high energies for global symmetries associated with finite groups. An equivalent statement, based on the entropic order parameter associated with charged operators in the thermofield double state, was proven in a previous article by Casini, Huerta, Pontello, and the present author. Here we describe how the statement about the entropic order parameter arises, and how it gets transformed into the universal density of states. The use of the certainty principle, relating the entropic order and disorder parameters, is crucial for the proof. We remark that although the immediate application of this result concerns charged states, the origin and physics of such density can be understood by looking at the vacuum sector only. We also describe how these arguments lie at the origin of the so-called entropy equipartition in these type of systems, and how they generalize to QFT’s on non-compact manifolds.

Criticality Creates a Functional Platform for Network Transitions Between Internal and External Processing Modes in the Human Brain

Continuous switching between internal and external modes in the brain appears important for generating models of the self and the world. However, how the brain transitions between these two modes remains unknown. We propose that a large synchronization fluctuation of brain networks, emerging only near criticality (i.e., a balanced state between order and disorder), spontaneously creates temporal windows with distinct preferences for integrating the network’s internal information or for processing external stimuli. Using a computational model, electroencephalography (EEG) analysis, and functional magnetic resonance imaging (fMRI) analysis during alterations of consciousness in humans, we report that synchronized and incoherent networks, respectively, bias toward internal and external information with specific network configurations. In the brain network model and EEG-based network, the network preferences are the most prominent at criticality and in conscious states associated with the bandwidth 4−12 Hz, with alternating functional network configurations. However, these network configurations are selectively disrupted in different states of consciousness such as general anesthesia, psychedelic states, minimally conscious states, and unresponsive wakefulness syndrome. The network preference for internal information integration is only significant in conscious states and psychedelic states, but not in other unconscious states, suggesting the importance of internal information integration in maintaining consciousness. The fMRI co-activation pattern analysis shows that functional networks that are sensitive to external stimuli–such as default mode, dorsal attentional, and frontoparietal networks–are activated in incoherent states, while insensitive networks, such as global activation and deactivation networks, are dominated in highly synchronized states. We suggest that criticality produces a functional platform for the brain’s capability for continuous switching between two modes, which is crucial for the emergence of consciousness.

LE NOM COMME SOURCE D’ORDRE ET DE DESORDRE CHEZ L’INDIVIDU EN MILIEU MAXI DU BENIN / NAME AS A SOURCE OF ORDER AND DISORDER OF THE INDIVIDUAL IN MAXI ENVIRONMENT OF BENIN

La question de l’anthroponymie peut être appréhendée comme une préoccupation à caractère multidimensionnelle puisque le nom individuel est un instrument d’identification et d’intégration sociale et culturelle. Malheureusement, on constate de nos jours que les noms de personne chez les Maxi, véritables héritages culturels, porteurs de sens et de signification sont en voie de disparition. D’où cette réflexion ayant pour objectif de contribuer à une analyse du système de dation de nom en milieu maxi du Bénin. De nature qualitative, la production des données s’est basée sur un échantillon de quatre-vingt (80) acteurs sociaux. L’échantillon est identifié à partir des techniques d’échantillonnage par saturation (Deslauriers, 1991) et celle du choix raisonné. Les données ont été collectées à l’aide de deux outils à savoir l’entretien (guide d’entretien et récit de vie) et l’étude documentaire. Les données empiriques dépouillées et traitées ont été analysées suivant l’individualisme méthodologique de Raymond Boudon (1992). Le corpus théorique révèle que le nom peut avoir une influence sur l’individu qui le porte selon qu’il ait une connotation antipathique ou sympathique. The question of anthroponymy can be understood as a multidimensional concern since the individual name is an instrument of social and cultural identification and integration. Unfortunately, we see nowadays that the names of people among the Maxi, true cultural heritages, carriers of meaning and significance are in the process of disappearing. Hence this reflection aimed at contributing to an analysis of the naming system in the maxi environment of Benin. Qualitative in nature, the production of data was based on a sample of eighty (80) social actors. The sample is identified using saturation sampling techniques (Deslauriers, 1991) and reasoned choice. The data was collected using two tools, namely the interview (interview guide and life story) and the documentary study. The empirical data analyzed and processed were analyzed according to the methodological individualism of Raymond Boudon (1992). The theoretical corpus reveals that the name can have an influence on the individual who wears it depending on whether it has an unpleasant or sympathetic connotation. <p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0922/a.php" alt="Hit counter" /></p>

Urban Space and City Living

This chapter offers a philosophical account of what is distinctive about urban spaces and urban subjectivity. It proposes four features distinctive of city life that concern dwellers’ bodies and how they use and move through space: (1) proximity and shared space with many people, including a wide and diverse range of strangers; (2) unpredictability; and (3) slow locomotion combined with (4) fast switching between skills, stances, and perceptual expectations, which requires a wide, fluid, and flexible set of metaskills for moving between skill sets. Drawing on empirical sociological literature, the chapter explores how city dwellers see and judge risk and safety, order and disorder. It also develops the notion of an urban territory, and explores how territory is claimed, used, and bounded through bodily micronegotiations.

Order and Disorder in Sangam Poems: On the Basics of Paanar-Puluvar Tradition

The theory of law, which deals with supernatural powers, shaped the myth of the celestial sphere. Religions that justify birth and gender segregation and produce slave bodies to adapt to the prevailing social conditions. Orders created to protect the power and interests of the rulers are influential in the name of rules from time to time. When one insists on order, disorder automatically reigns. When laying down rules as to what should be strictly followed, what should be excluded is defined as irregularity. In the Sangam Age Tamils insisted on the rules to be followed in practical life, contrary to the rules of good and bad. Such orders, in turn, were called virtues. At the same time the notion that disorder is anti-social as a whole was emphasized. Rules and exemptions are widely used to emphasize order and disorder in the interests of those who economically dominate society. The order and disorder recorded by the Sangam literary works have become the social document of ancient Tamils.