منابع مشابه
Structure of Vacuum Condensates
It is essential to know the space-time structure of the nonlocal vacuum condensates for application to medium energy processes. Using the DysonSchwinger formalism in the rainbow approximation for the quark propagator, we study the nonlocal quark condensate and model forms for the nonperturbative gluon propagator constrained by fits to local condensates and deep inelastic scattering with nucleon...
متن کاملEstimates of higher – dimensional vacuum condensates from the instanton vacuum
We calculate the values of non-factorizable dimension{7 vacuum condensates in the instanton vacuum. We comment on a method, recently proposed by Oganesian, to estimate the dimension{7 condensates by factorization of dimension{10 condensates in various inequivalent ways. The instanton estimates could be used to analyze the stability of QCD sum rules with increasing dimensions. PACS: 12.38.Lg, 11...
متن کاملCosmological Effects of Quantum Vacuum Condensates
In quantum field theory, many phenomena are characterized by a condensed structure of their vacua. Such a structure is responsible of a non trivial vacuum energy. Here we analyze disparate systems and we show that the thermal vacuum state for hot plasmas, the vacuum for boson field in curved space and the vacuum for mixed neutrinos have the state equation of dark matter, w = 0, and values of th...
متن کاملVacuum condensates and ‘ether-drift’ experiments
The idea of a ‘condensed’ vacuum state is generally accepted in modern elementary particle physics. We argue that this should motivate a new generation of precise ‘ether-drift’ experiments with present-day technology. 1. The idea of a ‘condensed’ vacuum is generally accepted in modern elementary particle physics. Indeed, in many different contexts one introduces a set of elementary quanta whose...
متن کاملVacuum Condensates of Dimension Two in Pure Euclidean Yang-Mills
∗Research Assistant of The Fund For Scientific ResearchFlanders, Belgium †[email protected] ‡[email protected] §[email protected] ¶[email protected] ‖[email protected] ∗∗[email protected] ††Talk given by S.P. Sorella at the International Conference Renormalization Group and Anomalies in Gravity and Cosmology, 17-23 March, 2003, Ouro Preto, MG, Brazil ‡‡henri.verschelde...
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ژورنال
عنوان ژورنال: JAPAN TAPPI JOURNAL
سال: 1974
ISSN: 0022-815X,1881-1000
DOI: 10.2524/jtappij.28.6_257