Quantum stochastic analysis via white noise operators in weighted Fock space

DM Chung, UC Ji, N Obata - Reviews in Mathematical Physics, 2002 - World Scientific
White noise theory allows to formulate quantum white noises explicitly as elemental
quantum stochastic processes. A traditional quantum stochastic differential equation of Itô …

Analytic characterization of generalized Fock space operators as two-variable entire functions with growth condition

UC Ji, N Obata, H Ouerdiane - Infinite dimensional analysis …, 2002 - World Scientific
Duality is established for new spaces of entire functions in two infinite dimensional variables
with certain growth rates determined by Young functions. These entire functions characterize …

[HTML][HTML] Stochastic integral representation theorem for quantum semimartingales

UC Ji - Journal of Functional Analysis, 2003 - Elsevier
The quantum stochastic integral of Itô type formulated by Hudson and Parthasarathy is
extended to a wider class of adapted quantum stochastic processes on Boson Fock space …

Quantum white noise calculus

UN CIG JI, N OBATA - … , infinite-dimensionality and probability at the …, 2002 - World Scientific
Recent developments in quantum white noise calculus are outlined on the basis of various
characterization theorems for operator symbols. A quantum stochastic integral and a …

A unified characterization theorem in white noise theory

UC Ji, N Obata - … Analysis, Quantum Probability and Related Topics, 2003 - World Scientific
We revisit a CKS-space from the viewpoint of standard setup of white noise calculus and
prove a general characterization theorem for white noise operators from a CKS-space into …

[PDF][PDF] Quantum White Noise Calculus Based on Nuclear Algebras of Entire Functions (Trends in Infinite Dimensional Analysis and Quantum Probability)

N Obata - 数理解析研究所講究録, 2002 - repository.kulib.kyoto-u.ac.jp
In recent years operator theory over white noise functions has been considerably studied
keeping close contacts with infinite dimensional harmonic analysis [5, 7, 13, 17], Cauchy …

Quadratic quantum white noises and Lévy Laplacian

N Obata - Nonlinear Analysis, Theory, Methods and …, 2001 - tohoku.elsevierpure.com
As a generalization of a quantum stochastic differential equation, a normal-ordered white
noise differential equation involving quadratic quantum white noises are formulated on the …

A role of Bargmann-Segal spaces in characterization and expansion of operators on Fock space

UC Ji, N Obata - Journal of the Mathematical Society of Japan, 2004 - jstage.jst.go.jp
A rigged Hilbert space formalism is introduced to study Fock space operators. The symbols
of continuous operators on a rigged Fock space are characterized in terms of Bargmann …

Higher powers of analytical operators and associated∗-Lie algebras

A Ettaieb, NT Khalifa, H Ouerdiane… - … Quantum Probability and …, 2016 - World Scientific
We introduce a new product of two test functions denoted by f□ g (where f and g in the
Schwartz space 𝒮 (ℝ)). Based on the space of entire functions with θ-exponential growth of …

An extended stochastic integral and a Wick calculus on parametrized Kondratiev-type spaces of Meixner white noise

NA Kachanovsky - Infinite Dimensional Analysis, Quantum …, 2008 - World Scientific
Using a general approach that covers the cases of Gaussian, Poissonian, Gamma, Pascal
and Meixner measures, we consider an extended stochastic integral and construct elements …