Results 11 to 20 of about 615 (177)

Deformation Quantization by Moyal Star-Product and Stratonovich Chaos [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
We make a deformation quantization by Moyal star-product on a space of functions endowed with the normalized Wick product and where Stratonovich chaos are well defined.
Rémi Léandre, Maurice Obame Nguema
doaj   +6 more sources

On the Moyal Star Product of Resurgent Series [PDF]

open access: yesAnnales de l'Institut Fourier, 2023
We analyze the Moyal star product in deformation quantization from the resurgence theory perspective. By putting algebraic conditions on Borel transforms, one can define the space of “algebro-resurgent series” (a subspace of 1 -Gevrey formal series ...
Li, Yong, Sauzin, David, Sun, Shanzhong
openaire   +5 more sources

Moyal Product and Representations of Solvable Lie Groups

open access: yesJournal of Functional Analysis, 1995
Let \(G = \text{exp}({\mathfrak g})\) be a simply connected connected solvable Lie group with Lie algebra \(\mathfrak g\). Let \({\mathcal O} = \text{Ad}^*(G)l\) be a coadjoint orbit of \(G\). Such an orbit is not simply connected in general. Pukanszky has given an explicit description of its universal covering \({\mathcal O}_0 = G/G(l)_0\), where \(G ...
Arnal, D, Cortet, J.C, Ludwig, J
openaire   +2 more sources

A Moyal type product on Hermitian symmetric spaces

open access: yesBulletin de la Classe des sciences, 1991
We suggest a construction of a Moyal type * product on Hermitian symmetric spaces ; this construction is motivated by what happens for coadjoint orbits of the Heisenberg group.
Arnal, Daniel   +3 more
openaire   +3 more sources

Operator equations and Moyal products–metrics in quasi-Hermitian quantum mechanics [PDF]

open access: yesPhysics Letters B, 2006
The Moyal product is used to cast the equation for the metric of a non-hermitian Hamiltonian in the form of a differential equation. For Hamiltonians of the form $p^2+V(ix)$ with $V$ polynomial this is an exact equation. Solving this equation in perturbation theory recovers known results.
Scholtz F.G., Geyer H.B.
openaire   +5 more sources

Asymptotic Behaviour of Determinants Through the Expansion of the Moyal Star Product

open access: yesCommunications in Mathematical Physics
We work out a generalization of the Szegö limit theorems on the determinant of large matrices. We focus on matrices with nonzero leading principal minors and elements that decay to zero exponentially fast with the distance from the main diagonal, but we relax the constraint of the Toeplitz structure. We obtain an expression for the asymptotic behaviour
Maurizio Fagotti, Vanja Marić
openaire   +3 more sources

Phase space representation of the density operator: Bopp pseudodifferential calculus and Moyal product

open access: yesJournal of Pseudo-Differential Operators and Applications
Abstract Bopp shifts, introduced in 1956, played a pivotal role in the statistical interpretation of quantum mechanics. As demonstrated in our previous work, Bopp’s construction provides a phase-space perspective of quantum mechanics that is closely connected to the Moyal star product and its role in deformation quantization.
de Gosson, Maurice
openaire   +4 more sources

Isospectral Hamiltonians from Moyal products [PDF]

open access: yesCzechoslovak Journal of Physics, 2006
10 pages, to appear special issue Czech.
Faria, C. F. D. M., Fring, A.
openaire   +3 more sources

A product form for the general stochastic matching model

open access: yes, 2021
International audienceAbstract We consider a stochastic matching model with a general compatibility graph, as introduced by Mairesse and Moyal (2016).
Moyal, Pascal   +2 more
core   +1 more source

q -deformed star products and Moyal brackets [PDF]

open access: yesJournal of Mathematical Physics, 1998
The standard and antistandard ordered operators acting on two-dimensional q-deformed phase space are shown to satisfy algebras which can be called q−W∞. q-star products and q-Moyal brackets corresponding to these algebras are constructed. Some applications like defining q-classical mechanics and q-path integrals are discussed.
openaire   +3 more sources

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