4,107 research outputs found
Coherent Tunneling and Instantons in Presence of Classical Chaos
We consider the instanton approach to the problem of chaos assisted tunneling
in the context of existing analytical and numerical results obtained in this
field. We provide the estimation for the range of validity of this method and
briefly discuss possible applications of chaos assisted tunneling for quantum
computations
Deterministic Chaos in Quantum Field Theory
We discuss the necessity and demonstrate the validity of introduction the
notion of deterministic chaos in quantum field theory. Brief review of the
existing approaches to this problem is given. We compare proposed chaos
criterion for quantum fields with existing ones. Its consequences in particle
physics are also discussed
The reproduction trajectories of institutions in relation to social isolation of individual population groups in regions of Russia
This article deals with spatial socio-demographic isolation as a factor of the existing settlement system in Russian regions. Theoretically, the phenomena of solitude and social isolation have their own demographic, socio-economic, and psychological origin. Conceptually, they are reflected in theories of nucleation of society’s family structure, families losing its core functions, and the deprivation of personality (friends and family) in the context of the second demographic transition. In fact, the trending reluctance to having children, increases in cohabitation and divorces, men’s premature deaths resulting in widowhood are supplemented and accompanied by institutional factors that enhance a singular lifestyle, including various forms of personal isolation from social environment in post-industrial society. We examine the increasingly higher number of private households with single individuals ranging from young to old, the incidence of widowhood institution (effects of death rate risks on marriage and family), effects of labor, academic, survival, and consumer migration (both reversible and irreversible) on replacement levels as the major reasons of socio-demographic isolation. Psychological, demographic isolation of any given local communities favors the feel of solitude as the controller of communication and interaction intensity between individuals. In socio-economic terms, isolation of local communities is related to the factor of families’ living away from communication centers and real markets, to new Russian and global logistics, deprivation of traditional sources of income of households as specific forms of survival on the vast living space of Russian society.The article has been prepared with the support of the Russian Foundation for Basic Research Grant 13-06-00008a “Creation and Enhancement of Quality of Life as a Priority for Socio-Economic Development of Russian Regions.
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