Quantum dissipative systems: II. String in a curved affine-metric space-timeстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Местоположение издательства:Road Town, United Kingdom
Первая страница:1184
Последняя страница:1190
Аннотация:A closed bosonic string in a curved affine-metric spacetime is considered as an example of dissipative quantum field theory. The conformal anomaly of the trace of the energy-momentum tenser for the string on the affine-metric manifold is investigated. The two-loop metric beta function for the two-dimensional nonlinear dissipative sigma model is calculated. Examples of nonflat manifolds that lead to ultraviolet-finite sigma models are found.