Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-05-10
Class.Quant.Grav. 18 (2001) 1979
Physics
High Energy Physics
High Energy Physics - Theory
23 pages, TeX. Misprints and typos corrected, references added
Scientific paper
10.1088/0264-9381/18/10/311
We show that dilaton beta-function equation in the brane-like sigma-model (regarded as NSR analogue of string theory on $AdS_5\times{S^5}$) has the form of stochastic Langevin equation with non-Markovian noise. The worldsheet cutoff is identified with stochastic time and the $V_5$-operator plays the role of the noise. We derive the Fokker-Planck equation associated with this stochastic process and show that the Hamiltonian of the $AdS_5$ supergravity defines the distribution satisfying this Fokker-Planck equation. This means that the dynamical compactification of flat ten-dimensional space-time on $AdS_5\times{S^5}$ occurs as a result of the non-Markovian stochastic process, generated by the $V_5$-operator noise. This provides us with an insight into relation between holography principle and the concept of stochastic quantization from the point of view of critical string theory.
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