Fock尺度下的非适应随机分析与非平稳演化
A nonadapted stochastic calculus and non stationary evolution in Fock scale
摘要:
在射影Fock空间上,利用Malliavin导数给出了量子随机积分和微分的无自适应和无维数形式的广义定义,并证明了它们关于归纳极限收敛的一致连续性.基于不确定空间中的归纳 *-代数结构,提出了一种新的QS演算形式,并导出了其在Fock空间中表示的QS Ito公式的非自适应推广.利用定义在不定空间中的时间积的算子表示,解决了一般QS发展方程在希尔伯特空间中的解问题,并证明了这些解的算子和映射分别具有等距性和 *-同态性,对应于QS可积生成元的伪酉性和 *-同态性.
英文摘要:
A generalized definition of quantum stochastic (QS) integrals and differentials is given in the free of adaptiveness and dimensionality form in terms of Malliavin derivative on a projective Fock space, and their uniform continuity with respect to the inductive limite convergence is proved. A new form of QS calculus based on an inductive *-algebraic structure in an indefinite space is developed and a nonadaptive generalization of the QS Ito formula for its representation in Fock space is derived. The problem of solution of general QS evolution equations in a Hilbert space is solved in terms of the constructed operator representation of chronological products, defined in the indefinite space, and isometry and *-homomorphism property respectively for operators and maps of these solutions, corresponding to the peseudounitary and *-homomorphism property of the QS integrable generators is proved.
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