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This article is cited in 8 scientific papers (total in 8 papers)
Laplace-type exact asymptotic formulas for the Bogoliubov Gaussian measure
V. R. Fatalov Lomonosov Moscow State University, Moscow, Russia
Abstract:
We obtain new asymptotic formulas for two classes of Laplace-type functional integrals with the Bogoliubov measure. The principal functionals are the $L^p$ functionals with $0<p<\infty$ and two functionals of the exact-upper-bound type. In particular, we prove theorems on the Laplace-type asymptotic behavior for the moments of the $L^p$ norm of the Bogoliubov Gaussian process when the moment order becomes infinitely large. We establish the existence of the threshold value $p_0=2+4\pi^2/\beta^2\omega^2$, where $\beta>0$ is the inverse temperature and $\omega>0$ is the harmonic oscillator eigenfrequency. We prove that the asymptotic behavior under investigation differs for $0<p<p_0 $ and $p>p_0$. We obtain similar asymptotic results for large deviations for the Bogoliubov measure. We establish the scaling property of the Bogoliubov process, which allows reducing the number of independent parameters.
Keywords:
Bogoliubov measure, Laplace method in Banach space, large deviation principle, action functional.
Received: 03.11.2010
Citation:
V. R. Fatalov, “Laplace-type exact asymptotic formulas for the Bogoliubov Gaussian measure”, TMF, 168:2 (2011), 299–340; Theoret. and Math. Phys., 168:2 (2011), 1112–1149
Linking options:
https://www.mathnet.ru/eng/tmf6683https://doi.org/10.4213/tmf6683 https://www.mathnet.ru/eng/tmf/v168/i2/p299
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Abstract page: | 541 | Full-text PDF : | 202 | References: | 103 | First page: | 3 |
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