Stochastic differential equations for models of non-relativistic matter interacting with quantized radiation fields
Stochastic differential equations for models of non-relativistic matter interacting with quantized radiation fields
复制标题
非相对论物质与量化辐射场相互作用模型的随机微分方程
DOI:
10.1007/s00440-016-0694-4
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发表时间:
2014
影响因子:
2
通讯作者:
J. S. Møller
中科院分区:
文献类型:
--
作者:
Batu Guneysu;O. Matte;J. S. Møller
We discuss Hilbert space-valued stochastic differential equations associated with the heat semi-groups of the standard model of non-relativistic quantum electrodynamics and of corresponding fiber Hamiltonians for translation invariant systems. In particular, we prove the existence of a stochastic flow satisfying the strong Markov property and the Feller property. To this end we employ an explicit solution ansatz. In the matrix-valued case, i.e., if the electron spin is taken into account, it is given by a series of operator-valued time-ordered integrals, whose integrands are factorized into annihilation, preservation, creation, and scalar parts. The Feynman–Kac formula implied by these results is new in the matrix-valued case. Furthermore, we discuss stochastic differential equations and Feynman–Kac representations for an operator-valued integral kernel of the semi-group. As a byproduct we obtain analogous results for Nelson’s model.
DOI:
--
发表时间:
--
期刊:
J. Funct. Anal 252
影响因子:
--
作者:
Hiroshima;Fumio
通讯作者:
Fumio
DOI:
--
发表时间:
2008
期刊:
Journal of Functionsd Analysis 254
影响因子:
--
作者:
F. Hiroshima;J;Lorinczi
通讯作者:
Lorinczi
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
J.L.rinczi;Fumio Hiroshima;V.Betz
通讯作者:
V.Betz