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Collective representations are concepts, ideas, categories and beliefs that do not belong to isolated individuals, but are instead the product of a social collectivity. [1] Émile Durkheim (1858-1917) originated the term "collective representations" to emphasise the way that many of the categories of everyday use–space, time, class, number etc–were in fact the product of collective social ...
Experiments on synthetic systems include self-propelled colloids (e.g., phoretically propelled particles [8] [20]), driven granular matter (e.g. vibrated monolayers [21]), swarming robots and Quinke rotators. Concepts in Active matter. Active gels Dense active matter; Collective motion. Collective animal behavior; Collective cell migration
Collective motion and swarming are among the most studied phenomena. Within the huge number of models that have been developed to catch such behavior from a microscopic description, the most famous is the model introduced by Tamás Vicsek et al. in 1995.
Collective motion is defined as the spontaneous emergence of ordered movement in a system consisting of many self-propelled agents. It can be observed in everyday life, for example in flocks of birds , schools of fish , herds of animals and also in crowds and car traffic.
The sociological approach [5] emphasizes the importance of language, collective representations, self-conceptions, and self-reflectivity.This theoretical approach argues that the shape and feel of human consciousness is heavily social, and this is no less true of our experiences of "collective consciousness" than it is of our experiences of individual consciousness.
Dicke superradiance is a collective phenomenon in which many two-level systems emit photons coherently in free space. [2] [18] It occurs if the two-level systems are initially prepared in their excited state and placed at a distance much smaller than the relevant photon's wavelength. Under these conditions, the spontaneous decay of the two ...
In natural language and physical science, a physical object or material object (or simply an object or body) is a contiguous collection of matter, within a defined boundary (or surface), that exists in space and time. Usually contrasted with abstract objects and mental objects. [1] [2]
In condensed matter physics, a quasiparticle is a concept used to describe a collective behavior of a group of particles that can be treated as if they were a single particle. Formally, quasiparticles and collective excitations are closely related phenomena that arise when a microscopically complicated system such as a solid behaves as if it ...