Results 41 to 50 of about 5,161,923 (254)

Fock space on $\mathbb{C}^\infty$ and Bose-Fock space

open access: yes, 2020
In this paper, we introduce the Fock space over $\mathbb{C}^{\infty}$ and obtain an isomorphism between the Fock space over $\mathbb{C}^{\infty}$ and Bose-Fock space. Based on this isomorphism, we obtain representations of some operators on the Bose-Fock space and answer a question in \cite{coburn1985}.
Wick, Brett D., Wu, Shengkun
openaire   +2 more sources

Complex structures on jet spaces and bosonic Fock space dynamics for causal variational principles [PDF]

open access: yes, 2018
Based on conservation laws for surface layer integrals for minimizers of causal variational principles, it is shown how jet spaces can be endowed with an almost-complex structure.
F. Finster, N. Kamran
semanticscholar   +1 more source

Weighted composition operators on the Fock space [PDF]

open access: yesOperators and Matrices, 2018
In this paper, we study weighted composition operators on the Fock space. We show that a weighted composition operator is cohyponorma if and only if it is normal.
M. Fatehi
semanticscholar   +1 more source

Investigations of the numerical range of a operator matrix

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2014
We consider a $2\times2$ operator matrix $A$ (so-called generalized Friedrichs model) associated with a system of at most two quantum particles on ${\rm d}$-dimensional lattice.
Tulkin Kh Rasulov, Elyor B Dilmurodov
doaj   +1 more source

Nonlocal Effects in Fock Space [PDF]

open access: yesPhysical Review Letters, 1995
If a physical system contains a single particle, and if two distant detectors test the presence of linear superpositions of one-particle and vacuum states, a violation of classical locality can occur. It is due to the creation of a two-particle component by the detecting process itself.
openaire   +4 more sources

Complex symmetric differential operators on Fock space [PDF]

open access: yesJournal of Differential Equations, 2018
The space of entire functions which are integrable with respect to the Gaussian weight, known also as the Fock space, is one of the preferred functional Hilbert spaces for modelling and experimenting harmonic analysis, quantum mechanics or spectral ...
P. V. Hai, M. Putinar
semanticscholar   +1 more source

Hankel transforms in generalized Fock spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
A classical Fock space consists of functions of the form,ϕ↔(ϕ0,ϕ1,…,ϕq),where ϕ0∈ℂ and ϕq∈Lp(ℝq), q≥1. We will replace the ϕq, q≥1 with test functions having Hankel transforms.
John Schmeelk
doaj   +1 more source

Fock space (2): Multiple fock spaces [PDF]

open access: yes, 1993
From the algebraic point of view, a multiple Fock space over ℌ is nothing but a standard (symmetric or antisymmetric) Fock space over a direct sum of copies of ℌ,and new definitions are not necessary in principle. However, this chapter contains important new notation, and a few rather interesting constructions, like that of the “finite-temperature ...
openaire   +1 more source

Boundedness and Compactness of Hankel Operators on Large Fock Space

open access: yesJournal of Function Spaces, 2022
We introduce the BMO spaces and use them to characterize complex-valued functions f such that the big Hankel operators Hf and Hf¯ are both bounded or compact from a weighted large Fock space Fpϕ into a weighted Lebesgue space Lpϕ when 1 ...
Xiaofeng Wang, Zhicheng Zeng
doaj   +1 more source

Reconstructing configurational Hamiltonians from Fock space

open access: yesNuclear Physics B
We present a unified operator-based framework for reconstructing configuration-space Hamiltonians directly from their Fock-space formulations. This approach clarifies how local dynamics and geometric structure emerge from global quantum operator algebras.
Davood Momeni
doaj   +1 more source

Home - About - Disclaimer - Privacy