Results 41 to 50 of about 5,285,566 (268)

Fourier transforms in generalized Fock spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
A classical Fock space consists of functions of the form,Φ↔(ϕ0,ϕ1,…,ϕq,…),where ϕ0∈C and ϕq∈L2(R3q), q≥1. We will replace the ϕq, q≥1 with q-symmetric rapid descent test functions within tempered distribution theory.
John Schmeelk
doaj   +1 more source

From n+1-level atom chains to n-dimensional noises [PDF]

open access: yes, 2004
In quantum physics, the state space of a countable chain of (n+1)-level atoms becomes, in the continuous field limit, a Fock space with multiplicity n.
Attal, Stephane, Pautrat, Yan
core   +2 more sources

X‐ray magnetic circular dichroism

open access: yesMajor Reference Works, Page 508-515., 2022
International Tables for Crystallography is the definitive resource and reference work for crystallography and structural science.

Each of the eight volumes in the series contains articles and tables of data relevant to crystallographic research and to applications of crystallographic methods in all sciences concerned with the ...
Gerrit van der Laan C. Chantler   +2 more
wiley  

+1 more source

Simple probability distributions on a Fock-space lattice [PDF]

open access: yesJournal of Physics: Condensed Matter, 2018
We consider some aspects of a standard model employed in studies of many-body localization: interacting spinless fermions with quenched disorder, for non-zero filling fraction, here on d-dimensional hypercubic lattices.
S. Welsh, D. E. Logan
semanticscholar   +1 more source

On the Uniqueness of the Fock Quantization of the Dirac Field in the Closed FRW Cosmology

open access: yesAdvances in Mathematical Physics, 2018
The Fock quantization of free fields propagating in cosmological backgrounds is in general not unambiguously defined due to the nonstationarity of the space-time. For the case of a scalar field in cosmological scenarios, it is known that the criterion of
Jerónimo Cortez   +3 more
doaj   +1 more source

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

A Lévy-Ciesielski expansion for quantum Brownian motion and the construction of quantum Brownian bridges [PDF]

open access: yes, 2007
We introduce "probabilistic" and "stochastic Hilbertian structures". These seem to be a suitable context for developing a theory of "quantum Gaussian processes". The Schauder system is utilised to give a Lévy-Ciesielski representation of quantum (bosonic)
Accardi L.   +9 more
core   +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

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

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

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