Results 51 to 60 of about 5,285,566 (268)
Weighted composition operators on the Fock space [PDF]
Operators 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
Complex symmetric differential operators on Fock space [PDF]
Journal 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
Fock space (2): Multiple fock spaces [PDF]
, 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
Exclusion statistics,operator algebras and Fock space representations
, 1998 We study exclusion statistics within the second quantized approach. We consider operator algebras with positive definite Fock space and restrict them in a such a way that certain state vectors in Fock space are forbidden ab initio.We describe three ...
Bernard D +39 more
core +1 more source
Low-Lying States of the Six-Dimensional Fractional Superstring
, 1992 The $K=4$ fractional superstring Fock space is constructed in terms of $\bZ_4$ parafermions and free bosons. The bosonization of the $\bZ_4$ parafermion theory and the generalized commutation relations satisfied by the modes of various parafermion fields
A.A. Belavin +27 more
core +1 more source
Boundedness and Compactness of Hankel Operators on Large Fock Space
Journal 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
Permutation Invariant Algebras, a Fock Space Realization and the Calogero Model
, 2002 We study permutation invariant oscillator algebras and their Fock space representations using three equivalent techniques, i.e. (i) a normally ordered expansion in creation and annihilation operators, (ii) the action of annihilation operators on monomial
Meljanac, S., Milekovic, M., Stojic, M.
core +1 more source
Rectification by charging -- the physics of contact-induced current asymmetry in molecular conductors [PDF]
, 2007 We outline the qualitatively different physics behind charging-induced current asymmetries in molecular conductors operating in the weakly interacting self-consistent field (SCF) and the strongly interacting Coulomb Blockade (CB) regimes.
A. W. Ghosh +5 more
core +3 more sources
Reconstructing configurational Hamiltonians from Fock space
Nuclear Physics BWe 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
Fluctuations around Hartree states in the mean-field regime [PDF]
, 2015 We consider the dynamics of a large system of N interacting bosons in the mean-field regime where the interaction is of order 1/N. We prove that the fluctuations around the nonlinear Hartree state are generated by an effective quadratic Hamiltonian in ...
Lewin, Mathieu +2 more
core +2 more sources